Vulnerability library
Security checkDecember 11, 2025

Formio improperly authorized permission elevation through specially crafted request path

Understand the exposure, see the recommended fix, and check whether your own website has related weaknesses.

High severitynpmformio

Check your website

Find this and other vulnerabilities with a free scan.

Your scan runs on your computer. No account required.

Description

Summary: A flaw in path handling could allow an attacker to access protected API endpoints by sending a crafted request path. This issue could result in unauthorized data disclosure under certain configurations.

Recommendation

Update the formio package to the latest compatible version. Followings are version details:

  • Affected version(s): **>= 4.0.0-rc.1, < 4.4.3 < 3.5.7**
  • Patched version(s): **4.4.3 3.5.7**

References

Could your website be exposed too?

SmartScanner can check your website for Formio improperly authorized permission elevation through specially crafted request path and gives you actionable findings to investigate.

Start a free scan

Related Issues

See something that needs correcting? Let us knowUpdated December 11, 2025