Unauthorized Image File Upload in EventPrime Plugin for WordPress
CVE-2026-1657

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Eventprime – Events Calendar, Bookings And Tickets
Vendor
CVE Published:
17 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-1657?

The EventPrime plugin for WordPress is susceptible to a vulnerability that allows unauthorized image file uploads. This security flaw exists in versions up to and including 4.2.8.4, due to improper registration of the upload_file_media AJAX action. It is publicly accessible without necessary authentication or authorization measures in place. Attackers can exploit this flaw to upload malicious images directly to the WordPress uploads directory, potentially compromising the integrity of the Media Library through the ep_upload_file_media endpoint.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

EventPrime – Events Calendar, Bookings and Tickets * <= 4.2.8.4

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

-CVE-2026-1657
Created by Vimash-Dilsara

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/eventprime-eve...
https://plugins.trac.wordpress.org/browser/eventprime-eve...

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Tharadol Suksamran
JSON
.