Common Weakness Enumeration
CWE-287
DiscouragedImproper Authentication
Abstraction: Class · Status: Draft
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
6846 vulnerabilities reference this CWE, most recent first.
CVE-2026-79787 (GCVE-0-2026-79787)
Vulnerability from cvelistv5 – Published: 2026-08-25 18:23 – Updated: 2026-08-25 18:55
VLAI
EPSS
VEX
Title
Alluxio through 2.9.5 S3 REST Proxy Authentication Bypass via Unverified Request Signature
Summary
Alluxio's S3 REST proxy fails to verify AWS Signature Version 4 signatures in its default configuration, allowing unauthenticated attackers to spoof user identity. Attackers can extract usernames from unsigned Authorization headers and impersonate any user, including service accounts, to read, write, and delete arbitrary data.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 18:54 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/Alluxio/alluxio | product |
| https://github.com/Alluxio/alluxio/issues/18755 | issue-tracking |
| https://github.com/Alluxio/alluxio/blob/v2.9.5/co… | technical-description |
| https://www.vulncheck.com/advisories/alluxio-thro… | third-party-advisory |
Impacted products
Date Public
2026-06-29 00:00
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CVE-2026-78885 (GCVE-0-2026-78885)
Vulnerability from cvelistv5 – Published: 2026-08-25 12:15 – Updated: 2026-08-27 14:35
VLAI
EPSS
VEX
Title
liketrek TREK OIDC Service oidcService.ts findOrCreateUser improper authentication
Summary
A vulnerability was identified in liketrek TREK up to 3.0.22. The impacted element is the function findOrCreateUser of the file server/src/services/oidcService.ts of the component OIDC Service. Such manipulation leads to improper authentication. It is possible to launch the attack remotely. The attack requires a high level of complexity. The exploitability is regarded as difficult. Upgrading to version 3.1.0 is sufficient to resolve this issue. Upgrading the affected component is advised.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 13:22 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/394941 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/394941/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-78885 | third-party-advisory |
| https://vuldb.com/submit/886931 | third-party-advisory |
| https://github.com/mauriceboe/TREK/security/advis… | related |
| https://github.com/liketrek/TREK/releases/tag/v3.1.0 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| liketrek | TREK |
Affected:
3.0.0
Affected: 3.0.1 Affected: 3.0.2 Affected: 3.0.3 Affected: 3.0.4 Affected: 3.0.5 Affected: 3.0.6 Affected: 3.0.7 Affected: 3.0.8 Affected: 3.0.9 Affected: 3.0.10 Affected: 3.0.11 Affected: 3.0.12 Affected: 3.0.13 Affected: 3.0.14 Affected: 3.0.15 Affected: 3.0.16 Affected: 3.0.17 Affected: 3.0.18 Affected: 3.0.19 Affected: 3.0.20 Affected: 3.0.21 Affected: 3.0.22 Unaffected: 3.1.0 cpe:2.3:a:liketrek:trek:*:*:*:*:*:*:*:* |
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CVE-2026-78863 (GCVE-0-2026-78863)
Vulnerability from cvelistv5 – Published: 2026-08-25 11:00 – Updated: 2026-08-27 15:06
VLAI
EPSS
VEX
Title
liketrek TREK Pre-2FA mfa_token authService.ts loginUser improper authentication
Summary
A vulnerability was found in liketrek TREK up to 3.0.22. Impacted is the function loginUser of the file server/src/services/authService.ts of the component Pre-2FA mfa_token Handler. The manipulation results in improper authentication. The attack may be performed from remote. Upgrading to version 3.1.0 is recommended to address this issue. Upgrading the affected component is recommended.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 15:05 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/394939 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/394939/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-78863 | third-party-advisory |
| https://vuldb.com/submit/886929 | third-party-advisory |
| https://github.com/mauriceboe/TREK/security/advis… | related |
| https://github.com/liketrek/TREK/releases/tag/v3.1.0 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| liketrek | TREK |
Affected:
3.0.0
Affected: 3.0.1 Affected: 3.0.2 Affected: 3.0.3 Affected: 3.0.4 Affected: 3.0.5 Affected: 3.0.6 Affected: 3.0.7 Affected: 3.0.8 Affected: 3.0.9 Affected: 3.0.10 Affected: 3.0.11 Affected: 3.0.12 Affected: 3.0.13 Affected: 3.0.14 Affected: 3.0.15 Affected: 3.0.16 Affected: 3.0.17 Affected: 3.0.18 Affected: 3.0.19 Affected: 3.0.20 Affected: 3.0.21 Affected: 3.0.22 Unaffected: 3.1.0 cpe:2.3:a:liketrek:trek:*:*:*:*:*:*:*:* |
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CVE-2026-78434 (GCVE-0-2026-78434)
Vulnerability from cvelistv5 – Published: 2026-08-24 21:30 – Updated: 2026-08-25 19:14
VLAI
EPSS
VEX
Title
Faveo Helpdesk post-ticket-reply Endpoint FormController.php post_ticket_reply missing authentication
Summary
A flaw has been found in Faveo Helpdesk up to 2.0.3. This impacts the function FormController::post_ticket_reply of the file app/Http/Controllers/Client/helpdesk/FormController.php of the component post-ticket-reply Endpoint. This manipulation causes missing authentication. The attack can be initiated remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 19:14 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/394712 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/394712/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-78434 | third-party-advisory |
| https://vuldb.com/submit/886394 | third-party-advisory |
| https://github.com/faveosuite/faveo-helpdesk/issu… | exploitissue-tracking |
Impacted products
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CVE-2026-78425 (GCVE-0-2026-78425)
Vulnerability from cvelistv5 – Published: 2026-09-17 09:32 – Updated: 2026-09-28 12:04
VLAI
EPSS
VEX
Title
SAML Audience Confusion Allows Cross-SP Authentication
Summary
Authorised users of outside applications behind the same corporate identity provider (IdP), for example, a wiki, a ticketing system, an expenses tool, or anything they legitimately hold an account on can log into their system via SAML SSO. The IdP issues an assertion to them. If that assertion is presented to NeuVector, NeuVector accepts it because the only thing distinguishing "an assertion for NeuVector" from "an assertion for the wiki" is the element, and the `NotInAudience` warning that reports the mismatch is never read.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 12:12 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/neuvector/neuvector/security/a… | vendor-advisory |
| https://bugzilla.suse.com/show_bug.cgi?id=CVE-202… | issue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SUSE | github.com/neuvector/neuvector |
Affected:
0 , ≤ v5.6.1
(custom)
cpe:2.3:a:suse:github.com_neuvector_neuvector:*:*:*:*:*:*:*:* |
Date Public
2026-09-28 12:00
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CVE-2026-78308 (GCVE-0-2026-78308)
Vulnerability from cvelistv5 – Published: 2026-09-24 08:35 – Updated: 2026-09-24 12:36
VLAI
EPSS
VEX
Title
Authentication Bypass in DIAEnergie
Summary
Improper Authentication vulnerability in DIAEnergie allows Authentication Bypass.
This issue affects DIAEnergie: before 1.11.00.022.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 12:36 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Deltaww | DIAEnergie |
Affected:
0 , < 1.11.00.022
(custom)
cpe:2.3:a:deltaww:diaenergie:*:*:*:*:*:*:*:* |
Date Public
2026-09-24 08:01
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CVE-2026-78168 (GCVE-0-2026-78168)
Vulnerability from cvelistv5 – Published: 2026-08-24 01:30 – Updated: 2026-08-27 14:37
VLAI
EPSS
VEX
Title
EFM ipTIME T24000M Session Validation httpcon_check_session_url improper authentication
Summary
A security vulnerability has been detected in EFM ipTIME T24000M up to 14.20.0. This affects the function httpcon_check_session_url of the component Session Validation Handler. Such manipulation leads to improper authentication. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
9.8 (Critical)
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 13:31 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/394557 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/394557/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-78168 | third-party-advisory |
| https://vuldb.com/submit/883766 | third-party-advisory |
| https://github.com/AdminSafe/CVE/issues/10 | exploitissue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EFM | ipTIME T24000M |
Affected:
14.0
Affected: 14.1 Affected: 14.2 Affected: 14.3 Affected: 14.4 Affected: 14.5 Affected: 14.6 Affected: 14.7 Affected: 14.8 Affected: 14.9 Affected: 14.10 Affected: 14.11 Affected: 14.12 Affected: 14.13 Affected: 14.14 Affected: 14.15 Affected: 14.16 Affected: 14.17 Affected: 14.18 Affected: 14.19 Affected: 14.20.0 cpe:2.3:a:efm:iptime_t24000m:*:*:*:*:*:*:*:* |
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CVE-2026-78167 (GCVE-0-2026-78167)
Vulnerability from cvelistv5 – Published: 2026-08-24 01:15 – Updated: 2026-08-24 18:00
VLAI
EPSS
VEX
Title
EFM ipTIME T16000M Session Validation httpcon_check_session_url improper authentication
Summary
A weakness has been identified in EFM ipTIME T16000M 14.20.2. The impacted element is the function httpcon_check_session_url of the component Session Validation Handler. This manipulation causes improper authentication. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 17:59 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/394556 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/394556/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-78167 | third-party-advisory |
| https://vuldb.com/submit/874154 | third-party-advisory |
| https://vuldb.com/submit/874302 | third-party-advisory |
| https://github.com/AdminSafe/CVE/issues/2 | issue-tracking |
| https://github.com/AdminSafe/CVE/issues/3 | exploitissue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EFM | ipTIME T16000M |
Affected:
14.20.2
cpe:2.3:a:efm:iptime_t16000m:*:*:*:*:*:*:*:* |
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CVE-2026-77567 (GCVE-0-2026-77567)
Vulnerability from cvelistv5 – Published: 2026-08-24 20:10 – Updated: 2026-08-27 14:17
VLAI
EPSS
VEX
Title
Filament: App-based MFA can be bypassed when recovery codes are enabled
Summary
Filament is a collection of full-stack components for accelerated Laravel development. Prior to versions 4.12.0 and 5.7.0, incorrect challenge-form required-field handling allows app-based multi-factor authentication to be bypassed when recovery codes are enabled. Email-based multi-factor authentication is not affected. This issue is fixed in versions 4.12.0 and 5.7.0.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 14:17 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/filamentphp/filament/security/… | x_refsource_CONFIRM |
| https://github.com/filamentphp/filament/commit/45… | x_refsource_MISC |
| https://github.com/filamentphp/filament/releases/… | x_refsource_MISC |
| https://github.com/filamentphp/filament/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| filamentphp | filament |
Affected:
>= 4.0.0, < 4.12.0
Affected: >= 5.0.0, < 5.7.0 |
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CVE-2026-77244 (GCVE-0-2026-77244)
Vulnerability from cvelistv5 – Published: 2026-09-22 17:49 – Updated: 2026-09-23 14:38
VLAI
EPSS
VEX
Title
[mcp-atlassian] Authentication bypass in HTTP transport: AtlassianOpaqueTokenVerifier accepts any non-empty token
Summary
MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, the HTTP transport accepts requests without a verified user identity and downstream fetcher construction falls back to the operator's globally configured Jira or Confluence credentials. A network client that can reach the MCP endpoint can invoke Atlassian tools as the operator, including read and write operations available to that account. The advisory traces the vulnerable input and processing flow through UserTokenMiddleware, AtlassianOpaqueTokenVerifier, _get_fetcher, and streamable-http, which identify the affected entry points, controls, and code paths. This issue is fixed in version 0.22.0.
Severity
10 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 18:55 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/sooperset/mcp-atlassian/securi… | x_refsource_CONFIRM |
| https://github.com/sooperset/mcp-atlassian/pull/1448 | x_refsource_MISC |
| https://github.com/sooperset/mcp-atlassian/commit… | x_refsource_MISC |
| https://github.com/sooperset/mcp-atlassian/releas… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sooperset | mcp-atlassian |
Affected:
< 0.22.0
|
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"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-77244",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-22T18:55:17.366068Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-23T14:38:20.138Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "mcp-atlassian",
"vendor": "sooperset",
"versions": [
{
"status": "affected",
"version": "\u003c 0.22.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, the HTTP transport accepts requests without a verified user identity and downstream fetcher construction falls back to the operator\u0027s globally configured Jira or Confluence credentials. A network client that can reach the MCP endpoint can invoke Atlassian tools as the operator, including read and write operations available to that account. The advisory traces the vulnerable input and processing flow through UserTokenMiddleware, AtlassianOpaqueTokenVerifier, _get_fetcher, and streamable-http, which identify the affected entry points, controls, and code paths. This issue is fixed in version 0.22.0."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 10,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-287",
"description": "CWE-287: Improper Authentication",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-303",
"description": "CWE-303: Incorrect Implementation of Authentication Algorithm",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862: Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-22T17:49:38.296Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-wrhw-j3f9-8vc6",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-wrhw-j3f9-8vc6"
},
{
"name": "https://github.com/sooperset/mcp-atlassian/pull/1448",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/sooperset/mcp-atlassian/pull/1448"
},
{
"name": "https://github.com/sooperset/mcp-atlassian/commit/b041733473f95119dd539542a43c280737a8e460",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/sooperset/mcp-atlassian/commit/b041733473f95119dd539542a43c280737a8e460"
},
{
"name": "https://github.com/sooperset/mcp-atlassian/releases/tag/v0.22.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/sooperset/mcp-atlassian/releases/tag/v0.22.0"
}
],
"source": {
"advisory": "GHSA-wrhw-j3f9-8vc6",
"discovery": "UNKNOWN"
},
"title": "[mcp-atlassian] Authentication bypass in HTTP transport: AtlassianOpaqueTokenVerifier accepts any non-empty token"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-77244",
"datePublished": "2026-09-22T17:49:38.296Z",
"dateReserved": "2026-08-20T19:02:23.416Z",
"dateUpdated": "2026-09-23T14:38:20.138Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Architecture and Design
Strategy: Libraries or Frameworks
Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
CAPEC-114: Authentication Abuse
An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker.
CAPEC-115: Authentication Bypass
An attacker gains access to application, service, or device with the privileges of an authorized or privileged user by evading or circumventing an authentication mechanism. The attacker is therefore able to access protected data without authentication ever having taken place.
CAPEC-151: Identity Spoofing
Identity Spoofing refers to the action of assuming (i.e., taking on) the identity of some other entity (human or non-human) and then using that identity to accomplish a goal. An adversary may craft messages that appear to come from a different principle or use stolen / spoofed authentication credentials.
CAPEC-194: Fake the Source of Data
An adversary takes advantage of improper authentication to provide data or services under a falsified identity. The purpose of using the falsified identity may be to prevent traceability of the provided data or to assume the rights granted to another individual. One of the simplest forms of this attack would be the creation of an email message with a modified "From" field in order to appear that the message was sent from someone other than the actual sender. The root of the attack (in this case the email system) fails to properly authenticate the source and this results in the reader incorrectly performing the instructed action. Results of the attack vary depending on the details of the attack, but common results include privilege escalation, obfuscation of other attacks, and data corruption/manipulation.
CAPEC-22: Exploiting Trust in Client
An attack of this type exploits vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by communicating directly with the server where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
CAPEC-57: Utilizing REST's Trust in the System Resource to Obtain Sensitive Data
This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to obtain sensitive data once SSL is terminated.
CAPEC-593: Session Hijacking
This type of attack involves an adversary that exploits weaknesses in an application's use of sessions in performing authentication. The adversary is able to steal or manipulate an active session and use it to gain unathorized access to the application.
CAPEC-633: Token Impersonation
An adversary exploits a weakness in authentication to create an access token (or equivalent) that impersonates a different entity, and then associates a process/thread to that that impersonated token. This action causes a downstream user to make a decision or take action that is based on the assumed identity, and not the response that blocks the adversary.
CAPEC-650: Upload a Web Shell to a Web Server
By exploiting insufficient permissions, it is possible to upload a web shell to a web server in such a way that it can be executed remotely. This shell can have various capabilities, thereby acting as a "gateway" to the underlying web server. The shell might execute at the higher permission level of the web server, providing the ability the execute malicious code at elevated levels.
CAPEC-94: Adversary in the Middle (AiTM)
An adversary targets the communication between two components (typically client and server), in order to alter or obtain data from transactions. A general approach entails the adversary placing themself within the communication channel between the two components.