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Medium · 5.3 Public exploit CVE-2026-1657 EUVD-2026-7818GHSA-4x73-7vhc-g4xh

EventPrime <= 4.2.8.4 - Missing Authorization to Unauthenticated Image Upload via 'ep_upload_file_media' AJAX Endpoint

Published Feb 17, 2026 · Updated Apr 8, 2026 · Assigned by Wordfence

Vendor: Metagauss Product: EventPrime – Events Calendar, Bookings and Tickets Category: Web / CMS

Description

The EventPrime plugin for WordPress is vulnerable to unauthorized image file upload in all versions up to, and including, 4.2.8.4. This is due to the plugin registering the upload_file_media AJAX action as publicly accessible (nopriv-enabled) without implementing any authentication, authorization, or nonce verification despite a nonce being created. This makes it possible for unauthenticated attackers to upload image files to the WordPress uploads directory and create Media Library attachments via the ep_upload_file_media endpoint.

Affected products

VendorProductAffectedFixed
metagauss EventPrime – Events Calendar, Bookings and Tickets ≤ 4.2.8.4 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 2 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References