---
id: CVE-2026-89239
title: WWBN AVideo Reflected XSS via Referer Header Comment Breakout
summary: >-
  WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a
  reflected cross-site scripting vulnerability in the showAlertMessage()
  function that inserts the raw Referer header into a JavaScript comment without
  encoding…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: WWBN
product: AVideo
affected:
  - AVideo <= c3edcc274c389816d434acadac07ee78eaf330c1
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-11T17:09:22.658710Z'
published: '2026-09-11'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T20:30:18.243Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-89239'
references:
  - url: 'https://github.com/WWBN/AVideo/security/advisories/GHSA-3pp9-g99w-qw3j'
    label: GitHub Security Advisory (GHSA-3pp9-g99w-qw3j)
  - url: >-
      https://www.vulncheck.com/advisories/wwbn-avideo-reflected-xss-via-referer-header-comment-breakout
    label: >-
      VulnCheck Advisory: WWBN AVideo Reflected XSS via Referer Header Comment
      Breakout
tags:
  - cve.org
epss: 0.00164
epssPercentile: 0.06068
ingestedAt: '2026-09-14T11:11:19.882Z'
---

## Overview

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a reflected cross-site scripting vulnerability in the showAlertMessage() function that inserts the raw Referer header into a JavaScript comment without encoding. Attackers can craft a Referer header containing */ to close the comment and inject arbitrary JavaScript that executes in the site origin for visitors arriving from the attacker-controlled page.

## Affected

- `AVideo <= c3edcc274c389816d434acadac07ee78eaf330c1`

## Remediation

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