---
id: CVE-2026-109327
title: >-
  Admidio 4.0.12 through 4.3.17 and 5.0.0 before 5.0.15 contains a reflected
  cross-site scripting vulnerability in system/redirect.php that allows
  unauthenticated attackers to inject JavaScript via the url GET parameter, due
  to an incomple…
summary: >-
  Admidio 4.0.12 through 4.3.17 and 5.0.0 before 5.0.15 contains a reflected
  cross-site scripting vulnerability in system/redirect.php that allows
  unauthenticated attackers to inject JavaScript via the url GET parameter, due
  to an incomple…
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'
cwe:
  - CWE-79
published: '2026-10-12'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T17:17:28.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109327'
references:
  - url: 'https://github.com/Admidio/admidio/security/advisories/GHSA-vxfg-x6vc-7w3w'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/admidio-4.0.12-through-4.3.17-and-5.0.0-before-5.0.15-reflected-xss-via-system-redirect-php
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-12T18:00:08.203Z'
---

## Overview

Admidio 4.0.12 through 4.3.17 and 5.0.0 before 5.0.15 contains a reflected cross-site scripting vulnerability in system/redirect.php that allows unauthenticated attackers to inject JavaScript via the url GET parameter, due to an incomplete fix for CVE-2021-43810. Attackers can craft a javascript: URL containing a decoy http:// segment that passes validation and executes script in the Admidio origin when victims click the redirect link.

## Remediation

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