Unauthenticated Post Manipulation Vulnerability in WP Event Manager Plugin
CVE-2026-86442

Currently unrated

Key Information:

Vendor

WordPress
Status
WP Event Manager
Vendor
CVE Published:
5 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-86442?

An input validation error in the WP Event Manager plugin prior to version 3.4.2 allows unauthenticated users to exploit the front-end event submission flow. This vulnerability enables attackers to read and modify the content of unpublished posts and pages by supplying arbitrary post identifiers. As a result, attackers can manipulate the site's content and convert any unpublished post into an event, posing significant security risks and challenges for site integrity.

Affected Version(s)

WP Event Manager 3.4.0 < 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.

CVE-2026-86442 - Proof of Concept

References

https://wpscan.com/vulnerability/bcc4df7e-86a0-4614-9b3a-...
exploitvdb-entrytechnical-description

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Duy Tran
WPScan
.