CVE-2021-24537

Name of the Vulnerable Software and Affected Versions Similar Posts WordPress plugin versions 3.1.5 and earlier

Description The issue allows high privilege users to execute arbitrary PHP code in a hardened environment, where DISALLOW FILE EDIT, DISALLOW FILE MODS, and DISALLOW UNFILTERED HTML are set to true. This is achieved via the widget rrm similar posts condition widget setting of the plugin.

Recommendations For versions 3.1.5 and earlier, consider disabling the widget rrm similar posts condition widget setting to prevent exploitation until a patch is available. Restrict access to the plugin's settings for high privilege users to minimize the risk of arbitrary PHP code execution.