CVE-2024-4934: Quiz And Survey Master < 9.0.2 - Contributor+ Stored XSS

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-07-01 · updated 2026-06-17
Weakness: CWE-79

Description

The Quiz and Survey Master (QSM) WordPress plugin before 9.0.2 does not validate and escape some of its Quiz fields before outputting them back in a page/post where the Quiz is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

Affected products

ExpressTech Quiz And Survey Master: before 9.0.2 — fixed in 9.0.2

How to fix

Upgrade to a fixed version: ExpressTech Quiz And Survey Master 9.0.2. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/a2270ee1-3211-4b16-b3d7-6cdd732f7155/
https://wpscan.com/vulnerability/a2270ee1-3211-4b16-b3d7-6cdd732f7155/

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