CVE-2021-4363 : Security Advisory and Response
Learn about CVE-2021-4363 affecting WP Quick FrontEnd Editor plugin in WordPress. Understand the impact, technical details, and mitigation steps for this XSS vulnerability.
A detailed overview of CVE-2021-4363 focusing on the WP Quick FrontEnd Editor plugin vulnerability to Reflected Cross-Site Scripting up to version 5.5.
Understanding CVE-2021-4363
This section provides insights into the nature and impact of the vulnerability.
What is CVE-2021-4363?
The WP Quick FrontEnd Editor plugin for WordPress is susceptible to Reflected Cross-Site Scripting in versions up to 5.5 due to inadequate input sanitization and output escaping on the 'save_content_front' function. This flaw allows unauthenticated attackers to inject malicious web scripts into vulnerable pages.
The Impact of CVE-2021-4363
The vulnerability enables attackers to execute arbitrary scripts on affected pages, potentially leading to unauthorized actions or data theft.
Technical Details of CVE-2021-4363
Explore the specifics of the vulnerability, including affected systems, exploitation methods, and more.
Vulnerability Description
Insufficient input sanitization and output escaping in the 'save_content_front' function allow attackers to insert malicious scripts through user-supplied $_REQUEST values.
Affected Systems and Versions
The WP Quick FrontEnd Editor WordPress plugin versions up to 5.5 are impacted by this vulnerability, exposing them to potential exploitation.
Exploitation Mechanism
Attackers can exploit the vulnerability by manipulating user interactions, such as enticing them to click on specially crafted links.
Mitigation and Prevention
Discover the steps to mitigate the risk posed by CVE-2021-4363 and secure your systems.
Immediate Steps to Take
Website administrators should update the WP Quick FrontEnd Editor plugin to a secure version and educate users on safe browsing practices to prevent exploitation.
Long-Term Security Practices
Implement robust input validation and output encoding mechanisms in web applications to mitigate the risk of Cross-Site Scripting vulnerabilities.
Patching and Updates
Regularly monitor security advisories and promptly apply patches released by plugin developers to address known vulnerabilities.