CVE-2026-9233: CWE-862 Missing Authorization in expresstech Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker
The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 11.1.4. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to create, modify, and delete quiz output templates stored in the mlw_quiz_output_templates database table, including storing unsanitized HTML content such as arbitrary script tags.
AI Analysis
Technical Summary
CVE-2026-9233 is an authorization bypass vulnerability (CWE-862) in the Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker WordPress plugin. The plugin fails to properly verify user authorization for actions on quiz output templates stored in the mlw_quiz_output_templates database table. Authenticated users with contributor-level privileges or higher can exploit this to create, modify, or delete these templates, potentially injecting unsanitized HTML and script tags. This affects all plugin versions up to and including 11.1.4.
Potential Impact
The vulnerability allows users with contributor-level access or above to bypass intended authorization controls and manipulate quiz output templates. This can lead to unauthorized modification of content and injection of arbitrary script tags, which may facilitate cross-site scripting (XSS) attacks or other client-side code execution. There is no direct confidentiality or availability impact reported. The CVSS score is 4.3 (medium severity), reflecting limited impact confined to integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided at this time. Until a patch is available, restrict contributor-level access to trusted users only and monitor for suspicious activity related to quiz output templates. Avoid granting contributor or higher privileges to untrusted users.
CVE-2026-9233: CWE-862 Missing Authorization in expresstech Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker
Description
The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 11.1.4. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to create, modify, and delete quiz output templates stored in the mlw_quiz_output_templates database table, including storing unsanitized HTML content such as arbitrary script tags.
CVSS v3.1
Score 4.3medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-9233 is an authorization bypass vulnerability (CWE-862) in the Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker WordPress plugin. The plugin fails to properly verify user authorization for actions on quiz output templates stored in the mlw_quiz_output_templates database table. Authenticated users with contributor-level privileges or higher can exploit this to create, modify, or delete these templates, potentially injecting unsanitized HTML and script tags. This affects all plugin versions up to and including 11.1.4.
Potential Impact
The vulnerability allows users with contributor-level access or above to bypass intended authorization controls and manipulate quiz output templates. This can lead to unauthorized modification of content and injection of arbitrary script tags, which may facilitate cross-site scripting (XSS) attacks or other client-side code execution. There is no direct confidentiality or availability impact reported. The CVSS score is 4.3 (medium severity), reflecting limited impact confined to integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided at this time. Until a patch is available, restrict contributor-level access to trusted users only and monitor for suspicious activity related to quiz output templates. Avoid granting contributor or higher privileges to untrusted users.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-05-21T18:39:37.842Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3f79f927e9c79719e9f8f7
Added to database: 06/27/2026, 07:21:29 UTC
Last enriched: 07/04/2026, 22:09:57 UTC
Last updated: 08/09/2026, 12:41:12 UTC
Views: 75
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