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OpenAdvisories
Medium · 6.4 CVE-2026-11780 EUVD-2026-59860GHSA-crj5-47f7-xg78

Quiz and Survey Master (QSM) <= 11.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'question_title' Parameter

Published Aug 16, 2026 · Updated Aug 18, 2026 · Assigned by Wordfence

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.

Affected products

VendorProductAffectedFixed
expresstech Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker ≤ 11.2.1 —

References