Common Weakness Enumeration

CWE-287

Discouraged

Improper Authentication

Abstraction: Class · Status: Draft

API response cwe.mitre.org

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

6772 vulnerabilities reference this CWE, most recent first.

CVE-2026-102106 (GCVE-0-2026-102106)

Vulnerability from cvelistv5 – Published: 2026-09-30 20:24 – Updated: 2026-10-01 13:37
VLAI
Title
Kiteworks Email Protection Gateway improper authentication
Summary
Improper authentication in a Kiteworks Email Protection Gateway administrative service. An administrative service in Kiteworks Email Protection Gateway did not consistently enforce administrator authentication, so the required password check could be bypassed. An attacker who referenced a valid administrator account could potentially create, modify, or delete internal users and managed domains and change their security-feature configuration without authenticating; deleting a managed domain also removes its user accounts and could lock administrators out of the gateway.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 13:14 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version
Kiteworks Email Protection Gateway Affected: 0 , < 9.5.0 (custom)
Unaffected: 9.5.0
Create a notification for this product.
Date Public
2026-09-30 00:00
Show details on NVD website
To clipboard 

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CVE-2026-101281 (GCVE-0-2026-101281)

Vulnerability from cvelistv5 – Published: 2026-09-29 00:45 – Updated: 2026-10-01 15:27 X_Open Source
VLAI
Title
Trusted Domain Project OpenDMARC SPF Macro opendmarc_spf.c opendmarc_sp2_find_mailfrom_domain improper authentication
Summary
A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarc_sp2_find_mailfrom_domain of the file libopendmarc/opendmarc_spf.c of the component SPF Macro Handler. This manipulation causes improper authentication. The attack is possible to be carried out remotely. The exploit has been published and may be used. Patch name: c48a74c758677fc5272a73eff15ffdbf8afda1a6. Applying a patch is the recommended action to fix this issue.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
7.3 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 15:27 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version
Trusted Domain Project OpenDMARC Affected: 1.4.0
Affected: 1.4.1
Affected: 1.4.2
    cpe:2.3:a:trusted_domain_project:opendmarc:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
yongzhe_xu (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-101280 (GCVE-0-2026-101280)

Vulnerability from cvelistv5 – Published: 2026-09-29 00:30 – Updated: 2026-09-29 17:28
VLAI
Title
Trusted Domain Project OpenDMARC Multi-Record Set opendmarc_policy_query_dmarc authentication spoofing
Summary
A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected is the function opendmarc_policy_query_dmarc of the component Multi-Record Set Handler. The manipulation results in authentication bypass by spoofing. The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
7.3 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 17:28 UTC
CWE
  • CWE-290 - Authentication Bypass by Spoofing
  • CWE-287 - Improper Authentication
Assigner
References
URL Tags
https://vuldb.com/vuln/411037 vdb-entrytechnical-description
https://vuldb.com/vuln/411037/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-101280 third-party-advisory
https://vuldb.com/submit/918282 third-party-advisory
https://xuyongzhe-vt.github.io/share/opendmarc-mu… exploit
Impacted products
Vendor Product Version
Trusted Domain Project OpenDMARC Affected: 1.4.0
Affected: 1.4.1
Affected: 1.4.2
    cpe:2.3:a:trusted_domain_project:opendmarc:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
yongzhe_xu (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-101077 (GCVE-0-2026-101077)

Vulnerability from cvelistv5 – Published: 2026-09-28 15:15 – Updated: 2026-09-28 15:31
VLAI
Title
Netcore NR289-GE boa_temp process_request missing authentication
Summary
A flaw has been found in Netcore NR289-GE 1.4.5102. This impacts the function process_request of the component boa_temp Handler. This manipulation causes missing authentication. The attack is possible to be carried out remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
10 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
10 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 15:30 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/410948 vdb-entrytechnical-description
https://vuldb.com/vuln/410948/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-101077 third-party-advisory
https://vuldb.com/submit/929226 third-party-advisory
https://github.com/senxitoyshuyi-ui/HACKALL/blob/… exploit
Impacted products
Vendor Product Version
Netcore NR289-GE Affected: 1.4.5102
    cpe:2.3:a:netcore:nr289-ge:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
yyycl (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-101073 (GCVE-0-2026-101073)

Vulnerability from cvelistv5 – Published: 2026-09-28 14:00 – Updated: 2026-10-01 14:18
VLAI
Title
Netcore NR289-GE CGI Dispatcher boa improper authentication
Summary
A security flaw has been discovered in Netcore NR289-GE 1.4.5102. Impacted is an unknown function of the file /bin/boa of the component CGI Dispatcher. Performing a manipulation results in improper authentication. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P
8.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L/E:P/RL:X/RC:R
8.3 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 14:18 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version
Netcore NR289-GE Affected: 1.4.5102
    cpe:2.3:a:netcore:nr289-ge:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
llsss (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-101050 (GCVE-0-2026-101050)

Vulnerability from cvelistv5 – Published: 2026-09-27 16:28 – Updated: 2026-09-28 13:14
VLAI
Title
Heym before 0.0.53 Authentication Bypass via Telegram Webhook
Summary
Heym before 0.0.53 fails to verify the X-Telegram-Bot-Api-Secret-Token header on Telegram webhook endpoints when credential_id is absent or secret_token is empty. Remote unauthenticated attackers can post forged Telegram updates to trigger workflows with the owner's configured credentials and execute actions on attacker-supplied input.
Severity
8.3 (High)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 13:14 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version
heymrun heym Affected: 0 , < 0.0.53 (semver)
Unaffected: 0.0.53 (semver)
Create a notification for this product.
Date Public
2026-06-26 00:00
Credits
okcomputerfan mbakgun
Show details on NVD website
To clipboard 

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CVE-2026-101049 (GCVE-0-2026-101049)

Vulnerability from cvelistv5 – Published: 2026-09-27 16:28 – Updated: 2026-09-28 14:18
VLAI
Title
Heym before 0.0.53 Slack Webhook Signature Verification Bypass
Summary
Heym before 0.0.53 fails to verify Slack request signatures when trigger nodes lack credential IDs or have empty signing secrets. Remote unauthenticated attackers can send forged Slack events to known webhook URLs to trigger workflows with the owner's credentials.
Severity
8.3 (High)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 14:17 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version
heymrun heym Affected: 0 , < 0.0.53 (semver)
Unaffected: 0.0.53 (semver)
Create a notification for this product.
Date Public
2026-06-26 00:00
Credits
okcomputerfan mbakgun
Show details on NVD website
To clipboard 

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CVE-2026-101042 (GCVE-0-2026-101042)

Vulnerability from cvelistv5 – Published: 2026-09-27 16:28 – Updated: 2026-09-30 15:28
VLAI
Title
Parse Server 9.0.0 Authentication Bypass via Unverified Provider Identity
Summary
Parse Server is an open-source backend server. In versions >= 9.0.0 < 9.10.1-alpha.10 and >= 8.0.2 < 8.6.91, the code-based authentication adapters (GitHub, Google Play Games, Instagram, LINE, LinkedIn, Microsoft, QQ, Spotify, WeChat, Weibo) verify the client's authorization code with the external provider on signup and on provider linking, but not when authentication data is supplied together with a username and password on the login endpoint. As a result, a low-privileged authenticated user can attach an arbitrary, unverified provider identity to their own account without the provider ever being contacted, spoofing an external identity toward application logic that trusts the linked provider ID. An attacker can also pre-hijack accounts: by claiming the provider ID of a victim who has not yet linked that provider, the victim's later legitimate sign-in with that provider resolves to the attacker's account. Only deployments configuring one of the affected code-based auth adapters are impacted. Versions 9.10.1-alpha.10 and 8.6.91 fix the issue by running the adapter's credential verification on the login and challenge endpoints and rejecting a provider identity already linked to another user. As a workaround, disable the affected code-based auth adapters.
Severity
7.4 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
6.4 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 15:27 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version
parse-community parse-server Affected: 9.0.0 , < 9.10.1-alpha.10 (semver)
Unaffected: 9.10.1-alpha.10 (semver)
Create a notification for this product.
parse-community parse-server Affected: 8.0.2 , < 8.6.91 (semver)
Unaffected: 8.6.91 (semver)
Create a notification for this product.
Date Public
2026-09-13 00:00
Credits
MR-pentestGuy mtrezza
Show details on NVD website
To clipboard 

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CVE-2026-101004 (GCVE-0-2026-101004)

Vulnerability from cvelistv5 – Published: 2026-09-28 05:45 – Updated: 2026-09-28 12:27
VLAI
Title
notionnext-org NotionNext Authentication Guard cache.js cleanCache missing authentication
Summary
A security vulnerability has been detected in notionnext-org NotionNext up to 4.10.10. Affected by this issue is the function cleanCache of the file pages/api/cache.js of the component Authentication Guard. The manipulation of the argument token leads to missing authentication. The attack may be initiated remotely. Versions 4.1.0 - 4.9.5.2 allow unauthenticated exploitation due to missing method check. In versions 4.9.5.7 - 4.10.10 a guard present but only enforced when CACHE_REVALIDATION_TOKEN is set. Default deployments remain unprotected. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:C
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:C
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 12:24 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/410874 vdb-entrytechnical-description
https://vuldb.com/vuln/410874/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-101004 third-party-advisory
https://vuldb.com/submit/920379 third-party-advisory
Impacted products
Vendor Product Version
notionnext-org NotionNext Affected: 4.10.0
Affected: 4.10.1
Affected: 4.10.2
Affected: 4.10.3
Affected: 4.10.4
Affected: 4.10.5
Affected: 4.10.6
Affected: 4.10.7
Affected: 4.10.8
Affected: 4.10.9
Affected: 4.10.10
    cpe:2.3:a:notionnext-org:notionnext:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
zyx122126 (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-100903 (GCVE-0-2026-100903)

Vulnerability from cvelistv5 – Published: 2026-09-28 03:15 – Updated: 2026-10-01 14:03
VLAI
Title
ООО НПО Ритм GEOritm REST API obj-groups missing authentication
Summary
A vulnerability was identified in ООО НПО Ритм GEOritm up to 2.45.1. This affects an unknown part of the file /restapi/objects/obj-groups of the component REST API. Such manipulation of the argument objectId leads to missing authentication. The attack can be launched remotely. The exploit is publicly available and might be used. Upgrading to version 2.46 is able to mitigate this issue. It is advisable to upgrade the affected component. The vendor confirms: "In August 2026, NPO Ritm received an official vulnerability notification from the Russian Federal Service for Technical and Export Control (FSTEC Russia). The vulnerability was registered under identifier BDU:2026-11235. Following our internal investigation, we confirmed the vulnerability and implemented the necessary security fixes. The vulnerability has been fixed on our hosted GEO.RITM server at geo.ritm.ru. The fix has also been included in GEO.RITM version 2.46, which is already being distributed to our customers."
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 14:02 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
ООО НПО Ритм GEOritm Affected: 2.45.0
Affected: 2.45.1
Unaffected: 2.46
    cpe:2.3:a:_:georitm:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Xanik (VulDB User) Xanik (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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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.

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