Vulnerability Description
The Ninja Forms - File Uploads plugin for WordPress is vulnerable to Arbitrary File Read via the attach_files() function in versions up to, and including, 3.3.29. This is due to the get_files_for_attachment() function accepting a raw attacker-controlled 'files' array when the process() method returns early due to a client-supplied saveProgress flag, bypassing all upload validation, path normalization, and database record creation steps, and allowing an attacker-supplied file_path value to reach wp_mail() as an email attachment with only a file_exists() check. This makes it possible for unauthenticated attackers to read arbitrary files on the affected site's server.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/ninja-forms-uploads/trunk/includes/fi
- https://plugins.trac.wordpress.org/browser/ninja-forms-uploads/trunk/includes/in
- https://plugins.trac.wordpress.org/browser/ninja-forms-uploads/trunk/includes/in
- https://www.wordfence.com/threat-intel/vulnerabilities/id/87d4dd4a-b1e2-4d08-aef
FAQ
What is CVE-2026-13369?
CVE-2026-13369 is a vulnerability with a CVSS score of 7.5 (HIGH). The Ninja Forms - File Uploads plugin for WordPress is vulnerable to Arbitrary File Read via the attach_files() function in versions up to, and including, 3.3.29. This is due to the get_files_for_atta...
How severe is CVE-2026-13369?
CVE-2026-13369 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-13369?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.