CVE-2021-36893 : Security Advisory and Response

WordPress Responsive Tabs plugin <= 4.0.5 has been found to have a Cross-Site Scripting (XSS) vulnerability, impacting user roles with authorization. Discover more about CVE-2021-36893, its impact, technical details, and mitigation steps.

Understanding CVE-2021-36893

This section provides insights into the nature and implications of the WordPress Responsive Tabs plugin vulnerability.

What is CVE-2021-36893?

The CVE-2021-36893 vulnerability refers to a Stored Cross-Site Scripting (XSS) security loophole in the Responsive Tabs WordPress plugin version <= 4.0.5. This flaw allows authenticated users with author or higher user roles to inject malicious scripts into the plugin, potentially compromising the integrity of the website.

The Impact of CVE-2021-36893

Although the vulnerability has a base severity of MEDIUM (CVSS score of 4.8), it poses a considerable risk to websites using the affected plugin version. Attackers with high privileges could exploit this vulnerability to execute arbitrary code, leading to unauthorized actions and data theft.

Technical Details of CVE-2021-36893

Explore the specific technical aspects of the CVE-2021-36893 vulnerability to enhance your understanding of the issue.

Vulnerability Description

The vulnerability allows authenticated users with author or higher user roles to execute Stored Cross-Site Scripting (XSS) attacks by injecting malicious scripts into the Responsive Tabs WordPress plugin <= 4.0.5.

Affected Systems and Versions

The vulnerability affects websites utilizing the Responsive Tabs WordPress plugin version <= 4.0.5. Ensure that your system is updated to mitigate the risk of exploitation.

Exploitation Mechanism

Attackers can leverage the vulnerability by gaining authorized access as an author or higher user role within the WordPress platform. They can then inject malicious scripts into the plugin, exploiting the Cross-Site Scripting (XSS) vulnerability.

Mitigation and Prevention

Discover effective strategies to mitigate the risks associated with the CVE-2021-36893 vulnerability and secure your website from potential exploits.

Immediate Steps to Take

Update the Responsive Tabs plugin to version > 4.0.5 to patch the XSS vulnerability.
Monitor user roles and permissions to prevent unauthorized access and script injections.

Long-Term Security Practices

Implement regular security audits to identify and address vulnerabilities promptly.
Educate users on safe practices to minimize the risk of XSS attacks and other security threats.

Patching and Updates

Stay informed about security updates released by the plugin vendor and apply patches promptly to protect your website from known vulnerabilities.