---
id: CVE-2026-88869
title: >-
  AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a
  stored cross-site scripting vulnerability in the AD_Server plugin's log.php
  endpoint that fails to escape the label parameter before storage
summary: >-
  AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a
  stored cross-site scripting vulnerability in the AD_Server plugin's log.php
  endpoint that fails to escape the label parameter before storage. An
  unauthenticated at…
severity: critical
cvss: 9.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N'
cwe:
  - CWE-79
vendor: WWBN
product: AVideo
affected:
  - AVideo <= c3edcc274c389816d434acadac07ee78eaf330c1
published: '2026-09-10'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T16:18:10.990'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88869'
references:
  - url: 'https://github.com/WWBN/AVideo/security/advisories/GHSA-h68w-3r38-wmm8'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/avideo-ad-server-stored-xss-via-log-php-label-parameter
    label: disclosure@vulncheck.com
  - url: 'https://github.com/WWBN/AVideo/security/advisories/GHSA-h68w-3r38-wmm8'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-10T15:01:32.822844Z'
ingestedAt: '2026-09-10T13:50:37.334Z'
epss: 0.00527
epssPercentile: 0.42159
---

## Overview

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the AD_Server plugin's log.php endpoint that fails to escape the label parameter before storage. An unauthenticated attacker can inject malicious HTML through the label parameter, which is later rendered unsanitized in the admin Ad Types report using jQuery .html(), allowing execution of arbitrary JavaScript in an administrator's browser session.

## Remediation

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