phpMyFAQ - Stored XSS via Utils::parseUrl() in Comment Rendering
Published May 15, 2026
8.3
HIGHCVSS 4.0
EPSS 0.30%
Description
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.
Affected products
-
- Version 4.1.1StatusaffectedConstraints<4.1.2
- Version 4.1.2StatusunaffectedConstraints-
- Version
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed May 16, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
May–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.30% (0.00296) | 20.19th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.21% (0.00215) | 11.70th | v5 (v2026.06.15) |
| May 16, 2026 | 0.01% (0.00012) | 1.70th | v4 (v2025.03.14) |
References (4)
- https://github.com/advisories/GHSA-9525-27vj-c8r8 Advisory
- https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-9525-27vj-c8r8 exploitvendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-46367
- https://www.vulncheck.com/advisories/phpmyfaq-stored-xss-via-utils-parseurl-in-comment-rendering third-party-advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-9525-27vj-c8r8 | Advisory | |
| https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-9525-27vj-c8r8 | exploitvendor-advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2026-46367 | ||
| https://www.vulncheck.com/advisories/phpmyfaq-stored-xss-via-utils-parseurl-in-comment-rendering | third-party-advisory |
Change history (0)
No recorded changes yet.