---
id: CVE-2026-85577
title: >-
  AVideo through commit c91b5975d contains a reflected cross-site scripting
  vulnerability in userLogin.php that allows unauthenticated attackers to inject
  arbitrary JavaScript by closing the script tag with </script>
summary: >-
  AVideo through commit c91b5975d contains a reflected cross-site scripting
  vulnerability in userLogin.php that allows unauthenticated attackers to inject
  arbitrary JavaScript by closing the script tag with </script>. Attackers can
  craft a…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-09-04'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:05:53.177'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-85577'
references:
  - url: 'https://github.com/WWBN/AVideo/security/advisories/GHSA-v654-6qw8-pc33'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/avideo-userlogin-php-reflected-xss-via-error-parameter
    label: disclosure@vulncheck.com
  - url: 'https://github.com/WWBN/AVideo/security/advisories/GHSA-v654-6qw8-pc33'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00258
epssPercentile: 0.17793
ingestedAt: '2026-09-08T20:10:03.164Z'
---

## Overview

AVideo through commit c91b5975d contains a reflected cross-site scripting vulnerability in userLogin.php that allows unauthenticated attackers to inject arbitrary JavaScript by closing the script tag with </script>. Attackers can craft a malicious URL with an error parameter containing script breakout sequences to execute arbitrary JavaScript in the victim's browser context on the login page.

## Remediation

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