CVE-2023-0555 : What You Need to Know

This vulnerability affects the Quick Restaurant Menu plugin for WordPress, allowing authenticated attackers with subscriber-level permissions and above to bypass authorization checks and perform actions intended for administrators. The vulnerability exists in versions up to and including 2.0.2, leading to potential arbitrary post deletion or alteration.

Understanding CVE-2023-0555

This section provides an insight into the nature of CVE-2023-0555 and its implications.

What is CVE-2023-0555?

CVE-2023-0555 is an authorization bypass vulnerability in the Quick Restaurant Menu plugin for WordPress, enabling authenticated attackers to perform administrator actions without proper authorization checks.

The Impact of CVE-2023-0555

The impact of this CVE lies in the potential for authenticated attackers to manipulate menu items, create, update, or delete items, and carry out other menu management functions without the necessary permissions. This can result in unauthorized alterations to a WordPress site's content.

Technical Details of CVE-2023-0555

Delve deeper into the technical aspects of CVE-2023-0555 to understand its scope and mechanisms.

Vulnerability Description

The vulnerability arises from a lack of capability check on AJAX actions within the Quick Restaurant Menu plugin. Attackers with subscriber-level permissions and above can exploit this flaw to invoke actions reserved for administrators, leading to unauthorized post modifications.

Affected Systems and Versions

The Quick Restaurant Menu plugin versions up to and including 2.0.2 are impacted by this vulnerability. Users with affected versions are at risk of unauthorized access and manipulation of menu items on their WordPress sites.

Exploitation Mechanism

By leveraging the absence of proper capability checks on AJAX actions, authenticated attackers can invoke administrator-level functions within the plugin. This allows them to alter or delete menu items and perform unauthorized menu management tasks.

Mitigation and Prevention

Discover the steps necessary to mitigate the risks associated with CVE-2023-0555 and prevent potential exploitation.

Immediate Steps to Take

Users should immediately update the Quick Restaurant Menu plugin to a version beyond 2.0.2 to mitigate the vulnerability.
Administer robust access controls to limit the capabilities of user roles and prevent unauthorized access to critical functions.

Long-Term Security Practices

Implement a thorough review process for third-party plugins before installation to ensure they follow secure coding practices and regularly monitor for security updates.

Patching and Updates

Stay informed about security patches and updates released by plugin developers to promptly address known vulnerabilities. Regularly update all plugins and WordPress core to maintain a secure environment.