CVE-2026-103541 formtools.org Form Tools Ajax actions.php uploadFile unrestricted upload
Remote attackers can upload arbitrary files via the Ajax handler, potentially leading to code execution on the server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-103541?
CVE-2026-103541 is a medium-severity vulnerability in formtools.org Form Tools, published on 1 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was detected in formtools.org Form Tools up to 3.1.1. This issue affects the function Files::uploadFile of the file global/code/actions.php of the component Ajax Handler. The manipulation results in unrestricted upload. It is possible to launch the attack remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Which versions are affected by CVE-2026-103541?
How do I fix CVE-2026-103541?
No fix has been published for CVE-2026-103541 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-103541 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-103541 exists.
Sources
Also known as GHSA-c82v-cf4h-jfv4.