CVE-2026-46363
phpMyFAQ - Stored XSS in FAQ Question/Answer via Encode-Decode Bypass
- State
- Published
- Severity
- 5.1 Medium
- Published
- May 15, 2026
- Updated
- May 28, 2026
- Reserved
- May 13, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | 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 | VulnCheck |
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
phpmyfaqthorsten |
|
References
- GHSA Advisory GHSA-f5p7-2c9q-8896vendor-advisory
- VulnCheck Advisory: phpMyFAQ - Stored XSS in FAQ Question/Answer via Encode-Decode Bypassthird-party-advisory
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