CVE-2026-46363

phpMyFAQ - Stored XSS in FAQ Question/Answer via Encode-Decode Bypass

Published May 15, 2026 CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
Description
phpMyFAQ before 4.1.2 contains a stored cross-site scripting vulnerability in FAQ creation and update endpoints that bypass sanitization through encode-decode cycles. The vulnerability allows authenticated attackers with FAQ_ADD permission to inject malicious script tags via question or answer parameters, which execute in every visitor's browser when FAQ content is rendered with the raw Twig filter.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Github GHSA Github GHSA GHSA-h36g-93qx-rxgr phpMyFAQ: Stored XSS in FAQ Question/Answer via Encode-Decode Bypass of removeAttributes() Sanitization
Github GHSA Github GHSA GHSA-f5p7-2c9q-8896 phpMyFAQ has Stored XSS in FAQ Question/Answer via Encode-Decode Bypass of removeAttributes() Sanitization
History
Type Values Removed Values Added
First Time appeared Phpmyfaq
Phpmyfaq phpmyfaq
CPEs cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:*
Vendors & Products Phpmyfaq
Phpmyfaq phpmyfaq
Metrics cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Thorsten
Thorsten phpmyfaq
Vendors & Products Thorsten
Thorsten phpmyfaq
Type Values Removed Values Added
Description phpMyFAQ before 4.1.2 contains a stored cross-site scripting vulnerability in FAQ creation and update endpoints that bypass sanitization through encode-decode cycles. The vulnerability allows authenticated attackers with FAQ_ADD permission to inject malicious script tags via question or answer parameters, which execute in every visitor's browser when FAQ content is rendered with the raw Twig filter.
Title phpMyFAQ - Stored XSS in FAQ Question/Answer via Encode-Decode Bypass
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 8, 2026, 2:03 PM
Reserved
May 13, 2026, 7:40 PM
Status
Deferred
Published
May 15, 2026, 7:17 PM
Modified
Oct 26, 2026, 2:10 PM