---
id: CVE-2026-89254
title: AVideo CustomizeUser Stored XSS via field_name Parameter
summary: >-
  AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a
  stored cross-site scripting vulnerability in the CustomizeUser plugin where
  the field_name parameter is stored raw without sanitization. Administrators
  can inject …
severity: high
cvss: 8.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: WWBN
product: AVideo
affected:
  - AVideo <= c3edcc274c389816d434acadac07ee78eaf330c1
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-11T17:43:24.053821Z'
published: '2026-09-11'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T20:29:51.333Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-89254'
references:
  - url: 'https://github.com/WWBN/AVideo/security/advisories/GHSA-7hj4-f9x4-gg7p'
    label: GitHub Security Advisory (GHSA-7hj4-f9x4-gg7p)
  - url: >-
      https://www.vulncheck.com/advisories/avideo-customizeuser-stored-xss-via-field-name-parameter
    label: >-
      VulnCheck Advisory: AVideo CustomizeUser Stored XSS via field_name
      Parameter
tags:
  - cve.org
epss: 0.00279
epssPercentile: 0.20608
ingestedAt: '2026-09-14T11:11:19.882Z'
---

## Overview

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the CustomizeUser plugin where the field_name parameter is stored raw without sanitization. Administrators can inject malicious scripts via the add.json.php endpoint that execute when viewing extra info pages or profile forms that render the typeToHTML function.

## Affected

- `AVideo <= c3edcc274c389816d434acadac07ee78eaf330c1`

## Remediation

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