XSS in Thorsten Phpmyfaq
CVE-2026-46367
phpMyFAQ before 4.1.2 contains a stored cross-site scripting vulnerability in Utils::parseUrl() that allows authenticated users to inject JavaScript via malformed URLs in comments. Attackers can craft URLs with unescaped quotes to inject event handlers, stealing admin session cookies and achieving full application takeover when visitors view affected FAQ pages.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (21.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Thorsten Phpmyfaq — versions 4.1.1, 4.1.2
Weakness classification (CWE)
References
- github.com/thorsten/phpMyFAQ/security/advisories/GHSA-9525-27vj-c8r8 (vendor-advisory)
- www.vulncheck.com/advisories/phpmyfaq-stored-xss-via-utils-parseurl-in-comment-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-46367?
- CVE-2026-46367 is a high-severity vulnerability in Thorsten Phpmyfaq, classified under Cross-site Scripting. CVSS score: 7.6/10. Published 2026-05-15.
- How severe is CVE-2026-46367?
- High severity. CVSS v3 base score is 7.6 out of 10.