WordPress Quiz And Survey Master Plugin <= 11.3.0 is vulnerable to Content Injection
Low priority No impactful threat
<= 11.3.0Vulnerable version(s)
11.3.1Patched version
12 Nov, 2026 by Patchstack
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Get startedRisks
CVSS 5.3As immediate action, update the affected plugin. If you're unable to do so, ask your hosting provider or web developer for help.
5.3
Content Injection
Attackers can add unwanted content to pages (ads, scams, or malware links).
CVSS score is a way to evaluate and rank reported vulnerabilities in a standardized and repeatable way but which is not ideal for WordPress.
Solutions
This security issue has a low severity impact and is unlikely to be exploited.
Update to version 11.3.1 or later.
Update to version 11.3.1 or later to resolve the vulnerability.
Details
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Timeline
3 Nov, 2026
Early warning sent out to Patchstack customers
12 Nov, 2026
Published by Patchstack
12 Nov, 2026