CVE-2024-6390

Name: CVE-2024-6390
Creator: NVD / NIST
Published: 2024-08-03T06:16:29.32+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 0.31%

Last modified Jun 17, 2026

CVE-2024-6390 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. The Quiz and Survey Master (QSM) WordPress plugin before 9.1.0 does not properly sanitise and escape some of its Quizz settings, which could allow high privilege users such as contributor to perform Stored Cross-Site Scripting attacks. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

Description

The Quiz and Survey Master (QSM) WordPress plugin before 9.1.0 does not properly sanitise and escape some of its Quizz settings, which could allow high privilege users such as contributor to perform Stored Cross-Site Scripting attacks

Metrics

CVSS 3.1

5.9/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L

EPSS Probability

0.31%

22.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Expresstech	Quiz And Survey Master	< 9.1.0

References

https://wpscan.com/vulnerability/00586687-33c7-4d84-b606-0478b1063d24/Exploit, Third Party Advisory

Timeline

Published: Aug 3, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-6390?

How severe is CVE-2024-6390?

CVE-2024-6390 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.

How do I fix CVE-2024-6390?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-6390?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST