Improper Access Control in Events Calendar Plugin for WordPress
CVE-2026-84743

3.8LOW

Key Information:

Vendor

WordPress
Status
The Events Calendar
Vendor
CVE Published:
23 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-84743?

The Events Calendar plugin for WordPress, prior to version 6.17.5, contains an improper access control vulnerability in its REST API write routes. This flaw permits users with low-privilege roles, such as contributors, to perform actions typically reserved for higher-privileged roles, enabling them to modify, unpublish, or even take ownership of posts and records belonging to other users, including administrative accounts. Organizations using this plugin should upgrade to the latest version to safeguard against unauthorized access and potential data breaches.

Affected Version(s)

The Events Calendar 6.15.16.1 < 6.17.5

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-2026-84743 - Proof of Concept

References

https://wpscan.com/vulnerability/6c20337d-f485-491c-a380-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
3.8
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mohammed Abd Alrahman
WPScan
.