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CVE-2026-49279: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in WWBN AVideo

0
High
VulnerabilityCVE-2026-49279cvecve-2026-49279cwe-79
Published: 07/15/2026 (07/15/2026, 20:57:21 UTC)
Source: CVE Database V5
Vendor/Project: WWBN
Product: AVideo

Description

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 v4.0

Score 7.7high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
Low
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
High
Vuln. Availability
High
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected software

GitHub Actionsmore threats →ai
wwbn/AVideo
pkg:github/wwbn/AVideo
Affected versions
<=29.0

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Data Version
5.2
Assigner Short Name
GitHub_M
Date Reserved
2026-05-28T20:07:58.861Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a57fcc868715ace4384e4a8

Added to database: 07/15/2026, 21:34:00 UTC

Last updated: 07/16/2026, 03:35:56 UTC

Views: 9

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