CVE-2021-24788 : Security Advisory and Response

Batch Cat <= 0.3 - Subscriber+ Arbitrary Categories Add/Set/Delete to Posts

Understanding CVE-2021-24788

This CVE refers to a vulnerability in the Batch Cat WordPress plugin version 0.3, allowing authenticated users to add/set/delete arbitrary categories to posts.

What is CVE-2021-24788?

The Batch Cat WordPress plugin version 0.3 defines custom AJAX actions that require authentication but are available to all roles. This allows any authenticated user, including simple subscribers, to manipulate categories of posts.

The Impact of CVE-2021-24788

This vulnerability could be exploited by malicious authenticated users to tamper with post categories, potentially leading to unauthorized content modifications and data exposure.

Technical Details of CVE-2021-24788

In this section, we will delve into the specifics of the vulnerability.

Vulnerability Description

The Batch Cat WordPress plugin version 0.3 allows all authenticated users, including subscribers, to perform unauthorized actions by manipulating post categories.

Affected Systems and Versions

The vulnerability affects Batch Cat version 0.3. Users of this version are advised to take immediate action to mitigate the risk.

Exploitation Mechanism

By leveraging the custom AJAX actions in the plugin, authenticated users can perform arbitrary actions on post categories without proper authorization.

Mitigation and Prevention

To safeguard your system from this vulnerability, consider the following actions.

Immediate Steps to Take

Disable the Batch Cat WordPress plugin version 0.3 if not critical.
Restrict access to authenticated users with minimal privileges.

Long-Term Security Practices

Regularly update the Batch Cat plugin to the latest secure version.
Conduct security audits to identify and address vulnerabilities proactively.

Patching and Updates

Stay informed about security patches released by the plugin vendor and apply them promptly to ensure protection against known vulnerabilities.