CVE-2026-46363
phpMyFAQ - Stored XSS in FAQ Question/Answer via Encode-Decode Bypass
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.
INFO
Published Date :
May 15, 2026, 7:17 p.m.
Last Modified :
Oct. 26, 2026, 2:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update phpMyFAQ to version 4.1.2 or later.
- Review and sanitize user-supplied FAQ content.
- Disable raw Twig filter if not essential.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-46363.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-46363 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-46363
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-46363 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-46363 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 26, 2026
Action Type Old Value New Value Added Translation Title: phpmyfaq de thorsten, Description: phpMyFAQ antes de 4.1.2 contiene una vulnerabilidad de cross-site scripting almacenado en los puntos finales de creación y actualización de FAQ que elude la sanitización a través de ciclos de codificación-decodificación. La vulnerabilidad permite a atacantes autenticados con permiso FAQ_ADD inyectar etiquetas de script maliciosas a través de los parámetros de pregunta o respuesta, que se ejecutan en el navegador de cada visitante cuando el contenido de la FAQ se renderiza con el filtro Twig ’raw’. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'thorsten', 'product': 'phpmyfaq', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '4.1.2', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '4.1.2', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-46363', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-05-15T20:01:20.128213Z'} -
CVE Modified by [email protected]
May. 28, 2026
Action Type Old Value New Value Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/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 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
May. 15, 2026
Action Type Old Value New Value Added Reference https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-f5p7-2c9q-8896 -
New CVE Received by [email protected]
May. 15, 2026
Action Type Old Value New Value 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Reference https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-f5p7-2c9q-8896 Added Reference https://www.vulncheck.com/advisories/phpmyfaq-stored-xss-in-faq-question-answer-via-encode-decode-bypass