CVE-2026-15518 AREA 17 Twill CMS Media Library Insert FileLibraryController.php storeFile unrestricted upload
Remote attackers can upload arbitrary files via the Media Library Insert Page, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15518?
CVE-2026-15518 is a medium-severity vulnerability in AREA 17 Twill CMS, published on 13 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A vulnerability has been found in AREA 17 Twill CMS up to 3.6.0. The impacted element is the function FileLibraryController::storeFile of the file src/Http/Controllers/Admin/FileLibraryController.php of the component Media Library Insert Page. Such manipulation of the argument qqfilename leads to unrestricted upload. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-15518?
How do I fix CVE-2026-15518?
No fix has been published for CVE-2026-15518 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-15518 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15518 exists.
Sources
Also known as GHSA-q9gx-wp22-jh5r.