CVE-2026-0740: CWE-434 Unrestricted Upload of File with Dangerous Type in SaturdayDrive Ninja Forms - File Uploads
The Ninja Forms - File Uploads plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'NF_FU_AJAX_Controllers_Uploads::handle_upload' function in all versions up to, and including, 3.3.26. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: The vulnerability was partially patched in version 3.3.25 and fully patched in version 3.3.27.
AI Analysis
Technical Summary
CVE-2026-0740 is a critical vulnerability in the Ninja Forms - File Uploads WordPress plugin caused by improper validation of uploaded file types in the NF_FU_AJAX_Controllers_Uploads::handle_upload function. This flaw enables unauthenticated attackers to upload arbitrary files, potentially leading to remote code execution on the server hosting the plugin. The issue affects all plugin versions up to 3.3.26. The vendor partially addressed the vulnerability in version 3.3.25 and fully fixed it in version 3.3.27.
Potential Impact
Successful exploitation allows unauthenticated attackers to upload arbitrary files to the affected server, which can lead to remote code execution. This compromises the confidentiality, integrity, and availability of the affected system. The CVSS score of 9.8 reflects the high impact and ease of exploitation without authentication.
Mitigation Recommendations
A full patch is available in Ninja Forms - File Uploads version 3.3.27. Users should upgrade to version 3.3.27 or later to fully remediate this vulnerability. Partial mitigation exists in version 3.3.25, but upgrading to the latest patched version is strongly recommended. No other vendor advisory or patch links are provided, so users should verify the update availability from the official plugin source.
CVE-2026-0740: CWE-434 Unrestricted Upload of File with Dangerous Type in SaturdayDrive Ninja Forms - File Uploads
Description
The Ninja Forms - File Uploads plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'NF_FU_AJAX_Controllers_Uploads::handle_upload' function in all versions up to, and including, 3.3.26. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: The vulnerability was partially patched in version 3.3.25 and fully patched in version 3.3.27.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-0740 is a critical vulnerability in the Ninja Forms - File Uploads WordPress plugin caused by improper validation of uploaded file types in the NF_FU_AJAX_Controllers_Uploads::handle_upload function. This flaw enables unauthenticated attackers to upload arbitrary files, potentially leading to remote code execution on the server hosting the plugin. The issue affects all plugin versions up to 3.3.26. The vendor partially addressed the vulnerability in version 3.3.25 and fully fixed it in version 3.3.27.
Potential Impact
Successful exploitation allows unauthenticated attackers to upload arbitrary files to the affected server, which can lead to remote code execution. This compromises the confidentiality, integrity, and availability of the affected system. The CVSS score of 9.8 reflects the high impact and ease of exploitation without authentication.
Mitigation Recommendations
A full patch is available in Ninja Forms - File Uploads version 3.3.27. Users should upgrade to version 3.3.27 or later to fully remediate this vulnerability. Partial mitigation exists in version 3.3.25, but upgrading to the latest patched version is strongly recommended. No other vendor advisory or patch links are provided, so users should verify the update availability from the official plugin source.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-01-08T16:45:37.724Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d48bf00a160ebd92416647
Added to database: 4/7/2026, 4:45:36 AM
Last enriched: 4/14/2026, 3:43:35 PM
Last updated: 5/22/2026, 12:18:16 PM
Views: 177
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