CVE-2021-36875 : What You Need to Know

WordPress uListing plugin <= 2.0.5 has been identified with an Authenticated Reflected Cross-Site Scripting (XSS) vulnerability. This article provides insights into the nature of the vulnerability, its impact, technical details, and mitigation strategies.

Understanding CVE-2021-36875

This section delves into the specifics of the CVE-2021-36875 vulnerability.

What is CVE-2021-36875?

CVE-2021-36875 refers to an Authenticated Reflected Cross-Site Scripting (XSS) vulnerability found in the WordPress uListing plugin versions equal to or lower than 2.0.5. This vulnerability exposes specific parameters to potential exploitation, including filter[id], filter[user], filter[expired_date], filter[created_date], and filter[updated_date].

The Impact of CVE-2021-36875

With a CVSS base score of 4.8, this vulnerability poses a medium severity risk. The attack complexity is low, requiring high privileges for exploitation. While the confidentiality and integrity impacts are low, user interaction is necessary for a successful attack.

Technical Details of CVE-2021-36875

This section outlines the technical aspects of CVE-2021-36875.

Vulnerability Description

The vulnerability allows authenticated attackers to execute malicious scripts through specific parameters in the uListing plugin, potentially compromising the security and functionality of affected WordPress websites.

Affected Systems and Versions

The vulnerability affects uListing (WordPress plugin) versions less than or equal to 2.0.5.

Exploitation Mechanism

Attackers with high privileges and user interaction can exploit this vulnerability using the identified filter parameters.

Mitigation and Prevention

Protecting systems from CVE-2021-36875 requires proactive security measures and timely updates.

Immediate Steps to Take

Website administrators are advised to update the uListing plugin to version 2.0.6 or higher immediately.

Long-Term Security Practices

Regularly monitor and apply security patches to mitigate the risk of XSS vulnerabilities in WordPress plugins.

Patching and Updates

Stay informed about security updates and implement them promptly to prevent exploitation of known vulnerabilities.