CVE-2021-4401

Name of the Vulnerable Software and Affected Versions The Style Kits plugin for WordPress versions up to, and including, 1.8.0

Description The issue is due to missing or incorrect nonce validation on the update posts stylekit() function, making it possible for unauthenticated attackers to update style kits for posts via a forged request. This can be achieved if an attacker can trick a site administrator into performing an action, such as clicking on a link.

Recommendations For versions up to, and including, 1.8.0, consider disabling the update posts stylekit() function until a patch is available to prevent exploitation. Restrict access to the Style Kits plugin to minimize the risk of exploitation. Avoid using the Style Kits plugin until the issue is resolved.