CVE-2026-49279

WWBN AVideo is an open source video platform. Versions 29.0 and below contain a Stored XSS vulnerability through the autoEvalCodeOnHTML parameter in the MessageSQLite WebSocket Handler. The MessageSQLite.php handler only strips autoEvalCodeOnHTML from $json['msg'], but msgToResourceId() reads from $msg['json'] with higher priority. An attacker can place the XSS payload in the json key instead of msg, bypassing the sanitization entirely. An authenticated attacker can execute arbitrary JavaScript in any connected user's browser session via the WebSocket messaging system, stealing session cookies and authentication tokens, taking over accounts through session hijacking, and chaining with CSRF to perform admin actions on the victim's behalf, in the default SQLite WebSocket backend configuration. This issue has a patch that has yet to be officially released, see https://github.com/WWBN/AVideo/commit/3e0b3ce2bfa766183ff0ae227439394db57b1a23.

CVSS

No CVSS.

References

Link	Resource
https://github.com/WWBN/AVideo/commit/3e0b3ce2bfa766183ff0ae227439394db57b1a23
https://github.com/WWBN/AVideo/security/advisories/GHSA-2fhx-q92v-5fhv
https://github.com/WWBN/AVideo/security/advisories/GHSA-2fhx-q92v-5fhv

Configurations

No configuration.

History

18 Jul 2026, 03:16

Type	Values Removed	Values Added
References	~~() https://github.com/WWBN/AVideo/security/advisories/GHSA-2fhx-q92v-5fhv -~~	() https://github.com/WWBN/AVideo/security/advisories/GHSA-2fhx-q92v-5fhv -

15 Jul 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-15 22:16

Updated : 2026-07-18 03:16

NVD link : CVE-2026-49279

Mitre link : CVE-2026-49279

CVE.ORG link : CVE-2026-49279

JSON object : View

Products Affected

No product.

CWE

CWE-79

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

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