Critical severity9.8NVD Advisory· Published Apr 7, 2026· Updated Jun 17, 2026
CVE-2026-0740
CVE-2026-0740
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 Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2<=3.3.26+ 1 more
- (no CPE)range: <=3.3.26
- (no CPE)
Patches
Vulnerability mechanics
References
2News mentions
7- iCagenda and Balbooa Forms Joomla Flaws Reportedly Exploited as Zero-DaysThe Hacker News · Jul 13, 2026
- Australia warns of global campaign targeting vulnerable CMS platformsBleepingComputer · Jul 11, 2026
- Exposed Hacker Server Reveals WP-SHELLSTORM Backdooring Thousands of WordPress SitesThe Hacker News · Jul 10, 2026
- LMDeploy CVE-2026-33626 Flaw Exploited Within 13 Hours of DisclosureThe Hacker News · Apr 24, 2026
- Attackers Actively Exploiting Critical Vulnerability in Ninja Forms – File Upload PluginWordfence Blog · Apr 16, 2026
- Wordfence Intelligence Weekly WordPress Vulnerability Report (April 6, 2026 to April 12, 2026)Wordfence Blog · Apr 16, 2026
- 50,000 WordPress Sites affected by Arbitrary File Upload Vulnerability in Ninja Forms – File Upload WordPress PluginWordfence Blog · Apr 6, 2026