WordPress WP Maintenance Plugin PHP Object Injection Vulnerability

A deserialization vulnerability allowing object injection has been identified in the WordPress WP Maintenance plugin, affecting versions through 6.1.9.7. This vulnerability could lead to various types of code injection, including SQL injection, path traversal, and denial-of-service, especially if a suitable PHP object injection chain is exploited.

Impact

Exploitation of this vulnerability could allow for PHP object injection, with potential consequences including arbitrary code execution, SQL injection, path traversal, and denial-of-service, if a proper PHP object injection chain is utilized.

Remediation

Users of the WP Maintenance plugin should update to version 6.1.9.8 or later to address this vulnerability. Patchstack users can enable auto-update for vulnerable plugins.