CVE-2023-49773 : Security Advisory and Response

This article provides an overview of CVE-2023-49773, a critical vulnerability in the WordPress BCorp Shortcodes Plugin.

Understanding CVE-2023-49773

CVE-2023-49773 highlights a Deserialization of Untrusted Data vulnerability in the BCorp Shortcodes Plugin, affecting versions up to 0.23.

What is CVE-2023-49773?

The CVE-2023-49773 vulnerability involves the WordPress BCorp Shortcodes Plugin, allowing attackers to execute PHP Object Injections due to improper handling of untrusted data.

The Impact of CVE-2023-49773

The impact of CVE-2023-49773 is critical, with a CVSS v3.1 base score of 10 and a base severity level of CRITICAL. Attackers can exploit this vulnerability to compromise confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2023-49773

CVE-2023-49773 is characterized by a CVSS v3.1 score indicating LOW attack complexity, NETWORK attack vector, and HIGH impacts on availability, confidentiality, and integrity. The vulnerability does not require any privileges for exploitation.

Vulnerability Description

The vulnerability arises from improper handling of untrusted data within the BCorp Shortcodes Plugin, leading to PHP Object Injections.

Affected Systems and Versions

BCorp Shortcodes Plugin versions up to 0.23 are impacted by this vulnerability, potentially exposing websites to malicious PHP Object Injections.

Exploitation Mechanism

Attackers can exploit the CVE-2023-49773 vulnerability by injecting malicious PHP objects into the affected plugin, enabling unauthorized execution of code.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-49773, immediate actions and long-term security practices should be implemented.

Immediate Steps to Take

Website administrators should update the BCorp Shortcodes Plugin to version 0.24 or higher to address the vulnerability. Additionally, monitoring for any suspicious activities is recommended.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security audits, and educating users on identifying and reporting suspicious activities are crucial for long-term security.

Patching and Updates

Regularly updating plugins, maintaining system hygiene, and staying informed about security best practices are essential for preventing future vulnerabilities.