CVE-2026-11883: CWE-287 Improper Authentication in WebAuthn Provider for Two Factor
The WebAuthn Provider for Two Factor WordPress plugin before 2.5.6 does not correctly validate the second-factor authentication response, allowing an attacker who already knows a user's password to bypass the two-factor authentication requirement by submitting a malformed request.
AI Analysis
Technical Summary
CVE-2026-11883 is an improper authentication vulnerability (CWE-287) in the WebAuthn Provider for Two Factor WordPress plugin versions prior to 2.5.6. The plugin fails to correctly validate the second-factor authentication response, enabling an attacker with knowledge of a user's password to bypass the two-factor authentication mechanism by submitting a malformed request. This vulnerability compromises the intended multi-factor authentication security control.
Potential Impact
Successful exploitation allows an attacker who already knows a user's password to bypass the two-factor authentication requirement, potentially leading to full account compromise with confidentiality, integrity, and availability impacts as indicated by the CVSS vector (C:H/I:H/A:H).
Mitigation Recommendations
A fix is available in version 2.5.6 of the WebAuthn Provider for Two Factor plugin. Users should upgrade to version 2.5.6 or later to remediate this vulnerability. Patch status is not explicitly confirmed in the vendor advisory, so verify with the plugin vendor for official remediation guidance.
CVE-2026-11883: CWE-287 Improper Authentication in WebAuthn Provider for Two Factor
Description
The WebAuthn Provider for Two Factor WordPress plugin before 2.5.6 does not correctly validate the second-factor authentication response, allowing an attacker who already knows a user's password to bypass the two-factor authentication requirement by submitting a malformed request.
CVSS v3.1
Score 7.2high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-11883 is an improper authentication vulnerability (CWE-287) in the WebAuthn Provider for Two Factor WordPress plugin versions prior to 2.5.6. The plugin fails to correctly validate the second-factor authentication response, enabling an attacker with knowledge of a user's password to bypass the two-factor authentication mechanism by submitting a malformed request. This vulnerability compromises the intended multi-factor authentication security control.
Potential Impact
Successful exploitation allows an attacker who already knows a user's password to bypass the two-factor authentication requirement, potentially leading to full account compromise with confidentiality, integrity, and availability impacts as indicated by the CVSS vector (C:H/I:H/A:H).
Mitigation Recommendations
A fix is available in version 2.5.6 of the WebAuthn Provider for Two Factor plugin. Users should upgrade to version 2.5.6 or later to remediate this vulnerability. Patch status is not explicitly confirmed in the vendor advisory, so verify with the plugin vendor for official remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-06-10T13:48:22.029Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a44f13a27e9c797195bbc59
Added to database: 07/01/2026, 10:51:38 UTC
Last enriched: 07/08/2026, 13:07:22 UTC
Last updated: 08/15/2026, 00:41:10 UTC
Views: 102
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