CVE-2023-2159

Name of the Vulnerable Software and Affected Versions CMP – Coming Soon & Maintenance plugin for WordPress versions up to, and including, 4.1.7

Description The issue allows users to bypass the maintenance mode feature of the plugin. This can be achieved by including a correct cmp bypass GET parameter in the URL, which is equal to the md5-hashed home url in the default setting. This enables users to visit a site that is supposed to be in maintenance mode.

Recommendations For versions up to, and including, 4.1.7, update to a version later than 4.1.7 to resolve the issue. As a temporary workaround, consider restricting access to the cmp bypass parameter in the URL to minimize the risk of exploitation.