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Critical Vulnerability in “Ninja Forms – File Upload” WordPress Plugin (CVE-2026-07409)

Hjalmar Desmond · 2026-04-10 · Read original ↗

ATT&CK techniques detected

2 predictions

T1190Exploit Public-Facing Application

99%

"critical vulnerability in “ ninja forms – file upload ” wordpress plugin ( cve - 2026 - 07409 ) the vulnerability is an arbitrary file upload flaw caused by insufficient validation of destination filenames during the upload process. an attacker does not need valid credentials to …"

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T1190Exploit Public-Facing Application

91%

"##s or suspicious activity ensure additional security controls ( such as web application firewalls ) are enabled where possiblereferences [ 1 ] https : / / www. wordfence. com / blog / 2026 / 04 / 50000 - wordpress - sites - affected - by - arbitrary - file - upload - vulnerabili…"

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Summary

<p>The vulnerability is an arbitrary file upload flaw caused by insufficient validation of destination filenames during the upload process. An attacker does not need valid /../</p> <p>The post <a href="https://www.truesec.com/hub/blog/critical-vulnerability-in-ninja-forms-file-upload-wordpress-plugin-cve-2026-07409">Critical Vulnerability in “Ninja Forms – File Upload” WordPress Plugin (CVE-2026-07409)</a> appeared first on <a href="https://www.truesec.com">Truesec</a>.</p>