What the vulnerability does
01Description
The Altair theme for WordPress is vulnerable to unauthorized modification of data that can lead to privilege escalation due to a missing capability check within functions.php in all versions up to, and including, 5.2.4. This makes it possible for unauthenticated attackers to update arbitrary options on the WordPress site. This can be leveraged to update the default role for registration to administrator and enable user registration for attackers to gain administrative user access to a vulnerable site.
Explanation of Vulnerability in Simple Terms
02Summary
Altair versions up to 5.2.4 lack proper authorization checks, allowing unauthenticated attackers to perform sensitive actions on the site. The vulnerability affects core functionality with no user interaction required. Site administrators should update immediately to a version newer than 5.2.4.
What an attacker can do
03Attacker Capabilities
Perform unauthorized actions including reading, modifying, or deleting site data without authentication.
Potential impact on your site
04Site Impact
Attackers can compromise site integrity, steal data, or disrupt service without needing valid credentials.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
March 19, 2025
CVE published
April 8, 2026
Record updated
