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.
6877 vulnerabilities reference this CWE, most recent first.
CVE-2026-19977 (GCVE-0-2026-19977)
Vulnerability from cvelistv5 – Published: 2026-08-17 03:00 – Updated: 2026-08-18 14:18
VLAI
EPSS
VEX
Title
EFM ipTIME A3004T Session Validation httpcon_check_session_url improper authentication
Summary
A vulnerability was detected in EFM ipTIME A3004T 14.19.0. The affected element is the function httpcon_check_session_url of the component Session Validation. Performing a manipulation results in improper authentication. Remote exploitation of the attack is possible. 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
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 14:18 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/391156 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/391156/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-19977 | third-party-advisory |
| https://vuldb.com/submit/873848 | third-party-advisory |
| https://github.com/AdminSafe/CVE/issues/1 | exploitissue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EFM | ipTIME A3004T |
Affected:
14.19.0
cpe:2.3:a:efm:iptime_a3004t:*:*:*:*:*:*:*:* |
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CVE-2026-19974 (GCVE-0-2026-19974)
Vulnerability from cvelistv5 – Published: 2026-08-17 02:15 – Updated: 2026-08-18 13:37
VLAI
EPSS
VEX
Title
treefrogframework treefrog-framework Session Cookie tsessioncookiestore.cpp strncmp improper authentication
Summary
A security flaw has been discovered in treefrogframework treefrog-framework up to 2.11.2. This vulnerability affects the function std::strncmp of the file src/tsessioncookiestore.cpp of the component Session Cookie Handler. The manipulation results in improper authentication. The attack can be launched remotely. A high complexity level is associated with this attack. It is stated that the exploitability is difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 13:24 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/391153 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/391153/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-19974 | third-party-advisory |
| https://vuldb.com/submit/873625 | third-party-advisory |
| https://github.com/theopaid/Authentication-Bypass… | exploit |
| https://github.com/treefrogframework/treefrog-fra… | issue-tracking |
| https://github.com/treefrogframework/treefrog-fra… | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| treefrogframework | treefrog-framework |
Affected:
2.11.0
Affected: 2.11.1 Affected: 2.11.2 cpe:2.3:a:treefrogframework:treefrog-framework:*:*:*:*:*:*:*:* |
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CVE-2026-19971 (GCVE-0-2026-19971)
Vulnerability from cvelistv5 – Published: 2026-08-17 01:30 – Updated: 2026-08-17 16:03
VLAI
EPSS
VEX
Title
LB-Link WR1210M Backup Endpoint backup.cgi main missing authentication
Summary
A flaw has been found in LB-Link WR1210M 1.0.3. This impacts the function main of the file /www/cgi-bin/backup.cgi of the component Backup Endpoint. This manipulation causes missing authentication. The attack is only possible within the local network. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 16:01 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/391148 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/391148/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-19971 | third-party-advisory |
| https://vuldb.com/submit/873139 | third-party-advisory |
Impacted products
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CVE-2026-19924 (GCVE-0-2026-19924)
Vulnerability from cvelistv5 – Published: 2026-08-16 01:00 – Updated: 2026-08-19 15:50
VLAI
EPSS
VEX
Title
Tenda AC10 httpd R7WebsSecurityHandler improper authentication
Summary
A security vulnerability has been detected in Tenda AC10 16.03.10.09_multi_TDE01. This vulnerability affects the function R7WebsSecurityHandler of the component httpd. The manipulation leads to improper authentication. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.
Severity
9.8 (Critical)
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 15:49 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/390174 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/390174/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-19924 | third-party-advisory |
| https://vuldb.com/submit/871957 | third-party-advisory |
| https://github.com/teiwiet/tenda-ac10-vulnerabili… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
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CVE-2026-19806 (GCVE-0-2026-19806)
Vulnerability from cvelistv5 – Published: 2026-09-01 04:27 – Updated: 2026-09-02 17:53
VLAI
EPSS
VEX
Title
Support Genix <= 1.4.52 - Authenticated (Subscriber+) Authentication Bypass to Administrator Account Takeover via 'p' Parameter Forged Guest Token
Summary
The Support Genix – Helpdesk, AI Chatbot, Knowledge Base & Customer Support Ticketing System plugin for WordPress is vulnerable to Authentication Bypass leading to Administrator Account Takeover in all versions up to, and including, 1.4.52 via the `guest_ticket_login()` function and its `p` parameter. This is due to the site-wide AES-256-CBC encryption key being derived from only three two-digit `wp_rand(10, 99)` values and a Unix timestamp via `md5()` — yielding approximately 19.5 bits of entropy — combined with a deterministic IV derived from the password, no authentication tag on the ciphertext, and no capability check, nonce, or session validation on the publicly reachable `/sgnix/?p=<token>` endpoint. This makes it possible for authenticated attackers, with subscriber-level access and above, who can obtain a single legitimate guest ticket token as a known-plaintext oracle and bound the plugin activation timestamp, to exhaust the ~729,000-candidate keyspace entirely offline, recover the site-wide encryption key, and forge a self-consistent `{ticket_id, ticket_user}` token targeting any administrator-owned ticket. Submitting the forged token to the unprotected endpoint causes `wp_set_auth_cookie()` to be called for that administrator, granting the attacker full administrative access to the WordPress site.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 17:52 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
12 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| devitemsllc | Support Genix – Helpdesk, AI Chatbot, Knowledge Base & Customer Support Ticketing System |
Affected:
0 , ≤ 1.4.52
(semver)
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CVE-2026-19749 (GCVE-0-2026-19749)
Vulnerability from cvelistv5 – Published: 2026-08-13 20:45 – Updated: 2026-08-18 01:38
VLAI
EPSS
VEX
Title
Tenda CH7 RTSP/ONVIF missing authentication
Summary
A vulnerability was detected in Tenda CH7, CH7G, CH10, CP3, CP3 Pro, CP7, TC3B14C, TC3B15C, TC3T14C and TC3T15C up to 20260625. Affected by this vulnerability is an unknown functionality of the component RTSP/ONVIF. Performing a manipulation results in missing authentication. It is possible to initiate the attack remotely. The attack is considered to have high complexity. The exploitation appears to be difficult. The exploit is now public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 01:37 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/389500 | vdb-entry |
| https://vuldb.com/vuln/389500/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-19749 | third-party-advisory |
| https://vuldb.com/submit/868503 | third-party-advisory |
| https://github.com/howitouchyou/Tenda-Smart-Camer… | related |
| https://www.tenda.com.cn/ | product |
Impacted products
10 products
| Vendor | Product | Version | |
|---|---|---|---|
| Tenda | CH7 |
Affected:
20260625
cpe:2.3:h:tenda:ch7:*:*:*:*:*:*:*:* |
|
| Tenda | CH7G |
Affected:
20260625
cpe:2.3:h:tenda:ch7g:*:*:*:*:*:*:*:* |
|
| Tenda | CH10 |
Affected:
20260625
cpe:2.3:h:tenda:ch10:*:*:*:*:*:*:*:* |
|
| Tenda | CP3 |
Affected:
20260625
cpe:2.3:h:tenda:cp3:*:*:*:*:*:*:*:* |
|
| Tenda | CP3 Pro |
Affected:
20260625
cpe:2.3:h:tenda:cp3_pro:*:*:*:*:*:*:*:* |
|
| Tenda | CP7 |
Affected:
20260625
cpe:2.3:h:tenda:cp7:*:*:*:*:*:*:*:* |
|
| Tenda | TC3B14C |
Affected:
20260625
cpe:2.3:h:tenda:tc3b14c:*:*:*:*:*:*:*:* |
|
| Tenda | TC3B15C |
Affected:
20260625
cpe:2.3:h:tenda:tc3b15c:*:*:*:*:*:*:*:* |
|
| Tenda | TC3T14C |
Affected:
20260625
cpe:2.3:h:tenda:tc3t14c:*:*:*:*:*:*:*:* |
|
| Tenda | TC3T15C |
Affected:
20260625
cpe:2.3:h:tenda:tc3t15c:*:*:*:*:*:*:*:* |
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CVE-2026-19660 (GCVE-0-2026-19660)
Vulnerability from cvelistv5 – Published: 2026-10-02 04:27 – Updated: 2026-10-03 15:42
VLAI
EPSS
VEX
Title
Divi Membership <= 2.3.0 - Unauthenticated Authentication Bypass via 'paypal_param' Parameter
Summary
The Divi Membership plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 2.3.0. The `process_paypal_callback` function, hooked to the `init` action, accepts a base64-encoded `paypal_param` GET parameter with no IPN validation, no cryptographic signature check, no ownership verification, and no nonce, allowing it to trust an entirely attacker-controlled user ID value that is passed directly to `wp_set_current_user()` and `wp_set_auth_cookie()`. This makes it possible for unauthenticated attackers to log in as any existing WordPress user — including administrators — by supplying an arbitrary user ID in the `paypal_param` GET parameter, resulting in full site takeover. The vulnerability is further compounded by the fact that the PayPal gateway class is instantiated unconditionally regardless of whether PayPal is enabled or configured, ensuring the vulnerable hook is always registered on every front-end request.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-03 15:30 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| DiviEngine | Divi Membership |
Affected:
0 , ≤ 2.3.0
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CVE-2026-19607 (GCVE-0-2026-19607)
Vulnerability from cvelistv5 – Published: 2026-09-16 15:46 – Updated: 2026-09-16 18:35
VLAI
EPSS
VEX
Title
Keycloak-services: keycloak-services: broker-originated username collision causes account lockout
Summary
A flaw was found in the first-broker-login flow of the keycloak-services component. This component handles the initial authentication and account linking when a user logs in via an external identity provider. The issue allows an attacker to register a matching username on an external provider to trigger a collision in Keycloak, which results in the legitimate user being locked out of their account.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 18:25 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:68276 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:68277 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:68278 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:68280 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-19607 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2514529 | issue-trackingx_refsource_REDHAT |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.16-2 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4-26 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.4.16 |
cpe:/a:redhat:build_keycloak:26.4::el9
|
|
| Red Hat | Red Hat build of Keycloak 26.6 |
Unaffected:
26.6.7-3 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.6::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.6 |
Unaffected:
26.6-20 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.6::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.6.7 |
cpe:/a:redhat:build_keycloak:26.6::el9
|
|
| Red Hat | Red Hat Single Sign-On 7 |
cpe:/a:redhat:red_hat_single_sign_on:7
|
Date Public
2026-09-16 13:01
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CVE-2026-19494 (GCVE-0-2026-19494)
Vulnerability from cvelistv5 – Published: 2026-10-08 21:03 – Updated: 2026-10-10 12:16
VLAI
EPSS
VEX
Title
Security vulnerabilities have been found in IBM Verify Identity Access and IBM Security Verify Access
Summary
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 could allow a remote authenticated attacker to bypass security restrictions due to improper authentication.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-10 03:55 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7291628 | vendor-advisorypatch |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Security Verify Access |
Affected:
10.0 , ≤ 10.0.9.2
(semver)
cpe:2.3:a:ibm:security_verify_access:10.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:security_verify_access:10.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:security_verify_access:10.0.9.2:*:*:*:*:*:*:* |
|
| IBM | Verify Identity Access |
Affected:
11.0 , ≤ 11.0.3
(semver)
cpe:2.3:a:ibm:verify_identity_access:11.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:verify_identity_access:11.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:verify_identity_access:11.0.3:*:*:*:*:*:*:* |
|
| IBM | Security Verify Access Container |
Affected:
10.0 , ≤ 10.0.9.2
(semver)
cpe:2.3:a:ibm:security_verify_access_container:10.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:security_verify_access_container:10.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:security_verify_access_container:10.0.9.2:*:*:*:*:*:*:* |
|
| IBM | Verify Identity Access Container |
Affected:
11.0 , ≤ 11.0.3
(semver)
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CVE-2026-19491 (GCVE-0-2026-19491)
Vulnerability from cvelistv5 – Published: 2026-10-08 21:03 – Updated: 2026-10-10 12:16
VLAI
EPSS
VEX
Title
Security vulnerabilities have been found in IBM Verify Identity Access and IBM Security Verify Access
Summary
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 could allow a remote attacker to bypass authentication due to improper authentication.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-10 03:55 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7291628 | vendor-advisorypatch |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Security Verify Access |
Affected:
10.0 , ≤ 10.0.9.2
(semver)
cpe:2.3:a:ibm:security_verify_access:10.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:security_verify_access:10.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:security_verify_access:10.0.9.2:*:*:*:*:*:*:* |
|
| IBM | Verify Identity Access |
Affected:
11.0 , ≤ 11.0.3
(semver)
cpe:2.3:a:ibm:verify_identity_access:11.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:verify_identity_access:11.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:verify_identity_access:11.0.3:*:*:*:*:*:*:* |
|
| IBM | Security Verify Access Container |
Affected:
10.0 , ≤ 10.0.9.2
(semver)
cpe:2.3:a:ibm:security_verify_access_container:10.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:security_verify_access_container:10.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:security_verify_access_container:10.0.9.2:*:*:*:*:*:*:* |
|
| IBM | Verify Identity Access Container |
Affected:
11.0 , ≤ 11.0.3
(semver)
cpe:2.3:a:ibm:verify_identity_access_container:11.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:verify_identity_access_container:11.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:verify_identity_access_container:11.0.3:*:*:*:*:*:*:* |
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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.