---
id: CVE-2026-49279
title: WWBN AVideo is an open source video platform
summary: >-
  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
  autoEvalC…
severity: none
cwe:
  - CWE-79
published: '2026-07-15'
updated: '2026-07-18'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-49279'
references:
  - url: >-
      https://github.com/WWBN/AVideo/commit/3e0b3ce2bfa766183ff0ae227439394db57b1a23
    label: security-advisories@github.com
  - url: 'https://github.com/WWBN/AVideo/security/advisories/GHSA-2fhx-q92v-5fhv'
    label: security-advisories@github.com
  - url: 'https://github.com/WWBN/AVideo/security/advisories/GHSA-2fhx-q92v-5fhv'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.0054
epssPercentile: 0.43068
ingestedAt: '2026-07-18T18:24:14.310Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.