CVE-2026-9230
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk23th percentile - higher than 23% of all known CVEs
Summary
The Quiz and Survey Master (QSM) plugin for WordPress up to version 11.1.4 is vulnerable to authorization bypass. Authenticated attackers with contributor-level access or higher can modify quizzes they do not own, overwrite result pages, and redirect notification emails to attacker-controlled addresses.
Risk Assessment
The organization faces unauthorized quiz modifications, data integrity loss, and interception of sensitive email notifications, potentially leading to data leakage or result manipulation.
Recommendation
Immediately update the Quiz and Survey Master plugin to the latest available version that fixes this vulnerability. Until updated, restrict plugin access to trusted users only.
Other vulnerabilities in Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker
See all- CVE-2026-9233Medium
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, allowing authenticated attackers with contributor-level access and above to create, modify, and delete quiz output templates in the mlw_quiz_output_templates database table, including storing unsanitized HTML content such as arbitrary script tags.
- CVE-2025-9294Medium
The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to unauthorized data loss due to a missing capability check on the qsm_dashboard_delete_result function. This affects all versions up to and including 10.3.1.
Original NVD description (English source)
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 modify quizzes they do not own, overwrite quiz results pages, and reroute quiz-result notification emails to attacker-controlled addresses. An attacker first calls the /quiz/structure endpoint with an arbitrary victim quiz ID to obtain a valid nonce bound to that quiz ID and their own user ID, then presents that nonce to the /quizzes/{id}/emails save endpoint, which accepts it without verifying quiz ownership.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS