50,000 WordPress Sites affected by Arbitrary File Upload Vulnerability in Ninja Forms – File Upload WordPress Plugin
On January 8th, 2026, we received a submission for an Arbitrary File Upload vulnerability in Ninja Forms – File Upload, a WordPress plugin with an estimated 50,000 active installations. This vulnerability makes it possible for an unauthenticated attacker to upload arbitrary files to a vulnerable site and achieve remote code execution. Props to Sélim Lanouar … Read more