CVE-2026-33683

WWBN AVideo is an open source video platform. In versions up to and including 26.0, a sanitization order-of-operations flaw in the user profile "about" field allows any registered user to inject arbitrary JavaScript that executes when other users visit their channel page. The `xss_esc()` function entity-encodes input before `strip_specific_tags()` can match dangerous HTML tags, and `html_entity_decode()` on output reverses the encoding, restoring the raw malicious HTML. Commit 7cfdc380dae1e56bbb5de581470d9e9957445df0 contains a patch.
Configurations

Configuration 1 (hide)

cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*

History

25 Mar 2026, 18:04

Type Values Removed Values Added
First Time Wwbn
Wwbn avideo
CPE cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*
Summary
  • (es) WWBN AVideo es una plataforma de video de código abierto. En versiones hasta la 26.0 inclusive, una falla en el orden de operaciones de sanitización en el campo 'acerca de' del perfil de usuario permite a cualquier usuario registrado inyectar JavaScript arbitrario que se ejecuta cuando otros usuarios visitan su página de canal. La función `xss_esc()` codifica entidades la entrada antes de que `strip_specific_tags()` pueda coincidir con etiquetas HTML peligrosas, y `html_entity_decode()` en la salida revierte la codificación, restaurando el HTML malicioso en bruto. El commit 7cfdc380dae1e56bbb5de581470d9e9957445df0 contiene un parche.
References () https://github.com/WWBN/AVideo/commit/7cfdc380dae1e56bbb5de581470d9e9957445df0 - () https://github.com/WWBN/AVideo/commit/7cfdc380dae1e56bbb5de581470d9e9957445df0 - Patch
References () https://github.com/WWBN/AVideo/security/advisories/GHSA-ghx5-7jjg-q2j7 - () https://github.com/WWBN/AVideo/security/advisories/GHSA-ghx5-7jjg-q2j7 - Exploit, Vendor Advisory

23 Mar 2026, 19:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-03-23 19:16

Updated : 2026-03-25 18:04


NVD link : CVE-2026-33683

Mitre link : CVE-2026-33683

CVE.ORG link : CVE-2026-33683


JSON object : View

Products Affected

wwbn

  • avideo
CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')