CVE-2026-109327

Medium

Description

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.

SeverityMedium

CVSS6.1

Exploit probability—

ProductAdmidio

PublishedOct 12, 2026

First seenOct 12, 2026

Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Update

Admidio admidio5.0.15 or later

Vendor advisories

github.com/Admidio/admidio/security/advisories/GHSA-vxfg-x6vc-7w3w

Affected products

Product	Affected versions	Fixed in
Admidio admidio	4.0.12 ≤ v ≤ 4.3.17, 5.0.0 ≤ v < 5.0.15	5.0.15

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