CVE-2021-24535 : What You Need to Know
Learn about the vulnerability in Light Messages WordPress plugin version 1.0, allowing attackers to perform CSRF to Stored XSS attacks. Find mitigation steps here.
The Light Messages WordPress plugin version 1.0 is vulnerable to CSRF to Stored XSS due to a lack of CSRF check when updating settings and unsanitized Message Content inputs, allowing attackers to set Cross-Site Scripting payloads.
Understanding CVE-2021-24535
This CVE involves the Light Messages WordPress plugin version 1.0, exposing systems to potential Cross-Site Scripting attacks.
What is CVE-2021-24535?
The Light Messages WordPress plugin version 1.0 lacks proper CSRF validation during settings updates, enabling attackers to inject malicious scripts through unsanitized inputs, leading to Cross-Site Scripting (XSS) vulnerabilities.
The Impact of CVE-2021-24535
The vulnerability allows authenticated attackers to manipulate plugin settings to execute arbitrary code or scripts within the backend or both backend and frontend, compromising data integrity and user security.
Technical Details of CVE-2021-24535
This section details the specific technical aspects of the CVE.
Vulnerability Description
The vulnerability arises from inadequate CSRF protection during setting updates and inadequate input sanitization, facilitating the injection of malicious scripts.
Affected Systems and Versions
Light Messages plugin version 1.0 is affected by this vulnerability, exposing WordPress installations to potential XSS attacks.
Exploitation Mechanism
Attackers with logged-in admin privileges can exploit this vulnerability by updating settings with malicious values, injecting XSS payloads.
Mitigation and Prevention
Protect your WordPress site from CVE-2021-24535 by following these security measures.
Immediate Steps to Take
Update the Light Messages plugin to a secure version and review all existing settings for potential malicious alterations.
Long-Term Security Practices
Regularly monitor your WordPress plugins for security updates and review input validation procedures to prevent similar vulnerabilities.
Patching and Updates
Stay informed about plugin updates and security patches to mitigate the risk of CSRF to Stored XSS attacks.