CVE-2026-34974

Name: CVE-2026-34974
Creator: NVD / NIST
Published: 2026-04-02T15:16:51.903+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.18%

Last modified Jun 17, 2026

CVE-2026-34974 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. phpMyFAQ is an open source FAQ web application. Prior to version 4.1.1, the regex-based SVG sanitizer in phpMyFAQ (SvgSanitizer.php) can be bypassed using HTML entity encoding in javascript: URLs within SVG <a href> attributes. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

phpMyFAQ is an open source FAQ web application. Prior to version 4.1.1, the regex-based SVG sanitizer in phpMyFAQ (SvgSanitizer.php) can be bypassed using HTML entity encoding in javascript: URLs within SVG <a href> attributes. Any user with edit_faq permission can upload a malicious SVG that executes arbitrary JavaScript when viewed, enabling privilege escalation from editor to full admin takeover. This issue has been patched in version 4.1.1.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.18%

7.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Phpmyfaq	Phpmyfaq	< 4.1.1

References

https://github.com/thorsten/phpMyFAQ/releases/tag/4.1.1Product
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-5crx-pfhq-4hggExploit, Vendor Advisory
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-5crx-pfhq-4hggExploit, Vendor Advisory

Timeline

Published: Apr 2, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-34974?

How severe is CVE-2026-34974?

CVE-2026-34974 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.

How do I fix CVE-2026-34974?

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-2026-34974?

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

Scan your code now

Source: NVD / NIST