CVE-2026-109327 Admidio 4.0.12 through 4.3.17 and 5.0.0 before 5.0.15 Reflected XSS via system/redirect.php
Unauthenticated attackers can execute arbitrary JavaScript in the victim's browser via a crafted redirect link in Admidio.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-109327?
CVE-2026-109327 is a medium-severity cross-site scripting vulnerability in admidio, published on 12 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-109327?
How do I fix CVE-2026-109327?
No fix has been published for CVE-2026-109327 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-109327 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-109327 exists.
Sources
Also known as GHSA-7p8w-m95g-69jq, GHSA-vxfg-x6vc-7w3w.