CVE-2021-24437 : Vulnerability Insights and Analysis

Favicon by RealFaviconGenerator WordPress plugin version 1.3.20 and earlier is affected by a Reflected Cross-Site Scripting (XSS) vulnerability that can be executed in the context of a logged administrator.

Understanding CVE-2021-24437

This CVE highlights a security flaw in the Favicon by RealFaviconGenerator WordPress plugin that allows for XSS attacks, potentially impacting the security of WordPress websites.

What is CVE-2021-24437?

The vulnerability in Favicon by RealFaviconGenerator WordPress plugin version 1.3.20 and earlier allows malicious actors to execute XSS attacks in the context of a logged administrator, posing a risk to website security.

The Impact of CVE-2021-24437

The impact of this CVE is the potential execution of unauthorized scripts in the web browser of a logged administrator, which could lead to various malicious activities, including data theft and site defacement.

Technical Details of CVE-2021-24437

This section provides detailed technical insights into the vulnerability, including its description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

The Favicon by RealFaviconGenerator WordPress plugin version 1.3.20 and earlier fails to properly sanitize or escape one of its parameters, enabling attackers to inject and execute malicious scripts through a reflected XSS attack.

Affected Systems and Versions

The affected product is Favicon by RealFaviconGenerator, specifically version 1.3.20 and earlier.

Exploitation Mechanism

By exploiting the lack of sanitization of user input, threat actors can craft malicious URLs containing script payloads, which are then executed in the browser of a logged-in administrator, leading to unauthorized actions.

Mitigation and Prevention

To protect systems from CVE-2021-24437, immediate steps should be taken along with implementing long-term security practices and applying necessary patches and updates.

Immediate Steps to Take

Update the Favicon by RealFaviconGenerator WordPress plugin to the latest version to mitigate the vulnerability.

Long-Term Security Practices

Regularly monitor and audit third-party plugins for security vulnerabilities to maintain a secure WordPress environment.

Patching and Updates

Stay informed about security advisories and promptly apply patches and updates to mitigate emerging vulnerabilities.