Vulnerability library
Security checkFebruary 24, 2026

Payload: Server-Side Request Forgery (SSRF) in External File URL Uploads

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

Medium severitynpmpayload

Check your website

Find this and other vulnerabilities with a free scan.

Your scan runs on your computer. No account required.

Description

A Server-Side Request Forgery (SSRF) vulnerability exists in Payload’s external file upload functionality. When processing external URLs for file uploads, insufficient validation of HTTP redirects could allow an authenticated attacker to access internal network resources.

Recommendation

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

  • Affected version(s): < 3.75.0
  • Patched version(s): 3.75.0

References

Could your website be exposed too?

SmartScanner can check your website for Payload: Server-Side Request Forgery (SSRF) in External File URL Uploads and gives you actionable findings to investigate.

Start a free scan

Related Issues

You might also like:

Exploiting Server Version Disclosure

CSRF, XXE, and 12 Other Security Acronyms Explained

Update Cheat Sheet for Developers

See something that needs correcting? Let us knowUpdated February 24, 2026