CVE-2026-33683
AVideo vulnerable to Stored XSS via html_entity_decode() Reversing xss_esc() Sanitization in Channel About Field
MEDIUM 5.4EPSS 0.2%
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.
- Affected
- WWBN · AVideo
- CVSS v3.1 NVD
- 5.4 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - EPSS
- 0.25% chance of exploitation in the next 30 days, 15th percentile
- Published
- 2026-03-23
- Updated
- 2026-03-25
Proof-of-concept exploits (1)
Security advisories
- WWBN/AVideo/security/advisories/GHSA-ghx5-7jjg-q2j7
- WWBN/AVideo/commit/7cfdc380dae1e56bbb5de581470d9e9957445df0