Medium severity6.4NVD Advisory· Published Aug 16, 2026· Updated Aug 20, 2026
CVE-2026-11780
CVE-2026-11780
Description
The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'question_title' parameter in all versions up to, and including, 11.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <=11.2.1
Patches
Vulnerability mechanics
References
11- plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.0.0/php/admin/options-page-questions-tab.phpnvd
- plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.0.0/php/admin/options-page-questions-tab.phpnvd
- plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.0.0/php/rest-api.phpnvd
- plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.0.0/php/rest-api.phpnvd
- plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.1.4/php/admin/options-page-questions-tab.phpnvd
- plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.1.4/php/admin/options-page-questions-tab.phpnvd
- plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.1.4/php/rest-api.phpnvd
- plugins.trac.wordpress.org/browser/quiz-master-next/tags/11.1.4/php/rest-api.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- plugins.trac.wordpress.org/changesetnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/66334c29-c9d6-48b0-8d6b-bae588da0331nvd
News mentions
1- Wordfence Intelligence Weekly WordPress Vulnerability Report (August 10, 2026 to August 16, 2026)Wordfence Blog · Aug 21, 2026