Vulnerability in Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker — CVE-2026-107862
MediumSeverity
0.2%Estimated exploit probability
40,000+ sitesInstalls
11.2.8Fixed in
What to do now
Update Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker to 11.2.8 or later.
Affected versions
- Everything up to and including 11.2.7
Affected: Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker (plugin, quiz-master-next)
What the vulnerability is
The Quiz and Survey Master (QSM) – Quiz Maker & Survey Maker plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 11.2.7. This is 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.