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Attackers Actively Exploiting Critical Vulnerability in Ninja Forms — File Upload Plugin

Attackers Actively Exploiting Critical Vulnerability in Ninja Forms — File Upload Plugin

If your WordPress site is running the Ninja Forms File Upload plugin, you have an active security problem — not a theoretical one. On 6th April 2026, Wordfence publicly disclosed a critical arbitrary file upload vulnerability in the plugin, and attackers are already exploiting it in the wild. This is not a case of researchers

Security Hardening

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Saturday, 18th April, 2026