7.2
High
CVE-2026-96558 The Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker plugin for WordPress is vulnerable to Stored DOM-Based…
Description
The Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'qsm_hidden_questions' parameter in all versions up to, and including, 11.2.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the attacker to force the mlw_results INSERT to fail by submitting an over-length or duplicate qsm_unique_key value, which triggers the audit trail code branch that writes the unescaped payload to wp_mlw_qm_audit_trail.form_data.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker 11.2 | earliest → 11.2.6 | No fix stated |
Other CVEs of Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker
The 4 CVEs of Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker →
CVE-2026-15963
The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to generic SQL…
6.5
Medium
CVE-2026-11780
The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to Stored Cross-Site…
6.4
Medium
CVE-2026-13767
The Quiz Master Next plugin for WordPress is vulnerable to SQL Injection via stored quiz page data in versions up to,…
6.5
Medium