CVE-2021-24783 : Security Advisory and Response

Post Expirator WordPress plugin before version 2.6.0 allows users with low roles to schedule deletion of arbitrary posts.

Understanding CVE-2021-24783

This CVE describes a vulnerability in the Post Expirator WordPress plugin that could be exploited by users with insufficient permissions to delete any post.

What is CVE-2021-24783?

The Post Expirator plugin, prior to version 2.6.0, lacks proper capability checks, enabling users with roles as low as Contributor to schedule the deletion of any post within the WordPress site.

The Impact of CVE-2021-24783

This vulnerability can be leveraged by unauthorized users to delete important posts, compromise the content of the website, or disrupt site operations.

Technical Details of CVE-2021-24783

In-depth insights into the vulnerability of the Post Expirator WordPress plugin.

Vulnerability Description

The absence of appropriate capability verification allows users with minimal permissions to delete posts, regardless of their ownership.

Affected Systems and Versions

Post Expirator versions before 2.6.0 are impacted by this security flaw.

Exploitation Mechanism

Attackers with roles as low as Contributor can exploit this vulnerability to delete any post on the WordPress site.

Mitigation and Prevention

Preventive measures to secure WordPress sites against CVE-2021-24783.

Immediate Steps to Take

Update the Post Expirator plugin to version 2.6.0 or higher to fix this vulnerability immediately.

Long-Term Security Practices

Regularly audit user roles and permissions within WordPress to prevent unauthorized actions like post deletion.

Patching and Updates

Stay informed about plugin updates and regularly apply patches to mitigate potential security risks.