Post Author Reassignment Vulnerability in WP Event Manager Plugin
CVE-2026-16304

Currently unrated

Key Information:

Vendor

WordPress

Vendor
CVE Published:
5 November 2026

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2026-16304?

The WP Event Manager plugin for WordPress prior to version 3.4.2 exposes a significant security flaw where improper validation of user-supplied post identifiers allows users with Subscriber access or higher to reassign post authorship. This vulnerability can lead to unauthorized content takeover, enabling malicious users to publish previously private or draft posts. It requires specific frontend features to be active, heightening the risk for WordPress installations utilizing this plugin.

Affected Version(s)

WP Event Manager 0 < 3.4.2

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.

References

Timeline

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Morato Antoine
WPScan
.