---
title: "CVE-2026-88869: AVideo - Stored XSS"
description: "AVideo contains a stored XSS caused by improper escaping of the \"label\" parameter in AD_Server plugin's log.php endpoint, letting unauthenticated attackers execute arbitrary JavaScript in admin browser sessions."
url: https://panop.io/threat-heartbeat/CVE-2026-88869/
---

# CVE-2026-88869 AVideo - Stored XSS

AVideo contains a stored XSS caused by improper escaping of the "label" parameter in AD\_Server plugin's log.php endpoint, letting unauthenticated attackers execute arbitrary JavaScript in admin browser sessions.

CVSS base score 9.3 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.53% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-88869)

## Details

Type

Stored XSS

Impact

Stored XSS

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Published

10 September 2026

Updated

15 October 2026

Weakness

[CWE-79](https://cwe.mitre.org/data/definitions/79.html)

## Vendor fix

Update to the latest version with the AD\_Server plugin fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-88869](https://nvd.nist.gov/vuln/detail/CVE-2026-88869)
- [https://www.vulncheck.com/advisories/avideo-ad-server-stored-xss-via-log-php-label-parameter](https://www.vulncheck.com/advisories/avideo-ad-server-stored-xss-via-log-php-label-parameter)
- [https://github.com/WWBN/AVideo/security/advisories/GHSA-h68w-3r38-wmm8](https://github.com/WWBN/AVideo/security/advisories/GHSA-h68w-3r38-wmm8)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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