What the vulnerability does
01Description
Missing Authorization vulnerability in Jeroen Schmit Theater for WordPress theatre allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Theater for WordPress: from n/a through <= 0.19.
Explanation of Vulnerability in Simple Terms
02Summary
The Theater for WordPress plugin through version 0.19 lacks proper authorization checks on certain functions. A logged-in user with low privileges can modify data they should not have access to. The vulnerability requires an active WordPress account but no special permissions. Site administrators should update to a version newer than 0.19.
What an attacker can do
03Attacker Capabilities
A logged-in user can modify data they lack authorization to change.
Potential impact on your site
04Site Impact
Unauthorized users can alter site content or settings they should not be able to modify.
Conditions required to exploit
05Prerequisites
Attacker must have a valid WordPress user account with low privileges.
Key dates
06Disclosure timeline
January 6, 2026
CVE published
April 28, 2026
Record updated