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2.1

Form Tools allows remote file upload

CVE-2026-103541 · published 18 days ago
Summary

The Form Tools web application (versions up to 3.1.1) lets anyone send a file to the server through its Ajax handler without proper checks. This means an attacker could place malicious files on your system, potentially leading to further compromise. Apply the latest update from the vendor or disable the vulnerable upload function until it is patched.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
formtools.org form tools 3.1.0
Original advisory text
formtools.org Form Tools Ajax actions.php uploadFile unrestricted upload
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.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
2.1 Low
Exploitation
<1% chance of attack within 30 days
Type
CWE-284Improper Access Control
CWE-434Unrestricted File Upload
Timeline
Published1 Oct 2026
Updated14 Oct 2026
First seen1 Oct 2026
Sources
CVE-2026-103541 · NVD
CVE-2026-103541 · MITRE
CVE-2026-103541 · OSV
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