CVE-2026-33683

CVE-2026-33683 · AVideo vulnerable to Stored XSS via html_entity_decode() Reversing xss_esc() Sanitization in Channel About Field

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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.

CVSS 5.4 · Moyenne · EPSS 0,2%

Publication

2026-03-23T18:41:13.923Z

Mise à jour

2026-03-25T14:34:30.157Z

Pile logicielle: php

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