CVE-2026-14826: CWE-639 Authorization Bypass Through User-Controlled Key in Quiz and Survey Master (QSM)
The Quiz and Survey Master (QSM) WordPress plugin before version 11.2.4 contains an authorization bypass vulnerability. This flaw allows users with contributor-level access or higher to access email-notification and results-page configurations of quizzes created by other users. The vulnerability arises because the plugin does not perform per-object ownership checks on certain REST API routes.
AI Analysis
Technical Summary
CVE-2026-14826 is an authorization bypass vulnerability in the Quiz and Survey Master (QSM) WordPress plugin prior to version 11.2.4. The plugin fails to verify ownership on REST API endpoints that return quiz configurations related to email notifications and results pages. As a result, authenticated users with contributor-level permissions or above can read sensitive configuration data, including notification recipient email addresses, for quizzes they do not own. This issue is classified under CWE-639 (Authorization Bypass Through User-Controlled Key). No CVSS score or official remediation guidance is currently available.
Potential Impact
Users with contributor-level access or higher can access sensitive quiz configuration data belonging to other users, including email notification recipient addresses. This could lead to unauthorized disclosure of sensitive information within the WordPress environment. There is no indication of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level access to trusted users only and monitor for updates from the plugin vendor regarding patches or temporary mitigations.
CVE-2026-14826: CWE-639 Authorization Bypass Through User-Controlled Key in Quiz and Survey Master (QSM)
Description
The Quiz and Survey Master (QSM) WordPress plugin before version 11.2.4 contains an authorization bypass vulnerability. This flaw allows users with contributor-level access or higher to access email-notification and results-page configurations of quizzes created by other users. The vulnerability arises because the plugin does not perform per-object ownership checks on certain REST API routes.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-14826 is an authorization bypass vulnerability in the Quiz and Survey Master (QSM) WordPress plugin prior to version 11.2.4. The plugin fails to verify ownership on REST API endpoints that return quiz configurations related to email notifications and results pages. As a result, authenticated users with contributor-level permissions or above can read sensitive configuration data, including notification recipient email addresses, for quizzes they do not own. This issue is classified under CWE-639 (Authorization Bypass Through User-Controlled Key). No CVSS score or official remediation guidance is currently available.
Potential Impact
Users with contributor-level access or higher can access sensitive quiz configuration data belonging to other users, including email notification recipient addresses. This could lead to unauthorized disclosure of sensitive information within the WordPress environment. There is no indication of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level access to trusted users only and monitor for updates from the plugin vendor regarding patches or temporary mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-06T08:45:48.527Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a854e91c6e8be033248b261
Added to database: 08/19/2026, 06:34:57 UTC
Last enriched: 08/19/2026, 07:12:08 UTC
Last updated: 08/19/2026, 09:43:34 UTC
Views: 4
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