GHSA-HHFX-5X8J-F5F6 Payload: Server-Side Request Forgery (SSRF) in External File URL Uploads

Impact 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. Users are affected ...

EUVD-2026-8467

Payload is a free and open source headless content management system. Prior to 3.75.0, 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...

CVE-2021-40109

A SSRF issue was discovered in Concrete CMS through 8.5.5. Users can access forbidden files on their local network. A user with permissions to upload files from external sites can upload a URL that redirects to an internal resource of any file type. The redirect is followed and loads the contents...