CVE-2021-38321 Explained : Impact and Mitigation
Learn about CVE-2021-38321 affecting Custom Menu Plugin <= 1.3.3. Understand the vulnerability impact, technical details, and mitigation strategies to protect WordPress sites.
A detailed overview of the CVE-2021-38321 vulnerability affecting the Custom Menu Plugin WordPress plugin.
Understanding CVE-2021-38321
This section explains the impact, technical details, and mitigation strategies related to CVE-2021-38321.
What is CVE-2021-38321?
The Custom Menu Plugin WordPress plugin is susceptible to Reflected Cross-Site Scripting via the selected_menu parameter in the custom-menus.php file, allowing malicious actors to insert arbitrary web scripts on websites using versions up to 1.3.3.
The Impact of CVE-2021-38321
With a CVSS base score of 6.1 (Medium Severity), this vulnerability poses a threat to the confidentiality and integrity of affected systems. Attackers can exploit this flaw to execute malicious scripts.
Technical Details of CVE-2021-38321
This section outlines specific technical information about the vulnerability.
Vulnerability Description
The vulnerability stems from inadequate input validation in the selected_menu parameter, enabling attackers to execute arbitrary scripts remotely.
Affected Systems and Versions
The vulnerability affects Custom Menu Plugin versions up to and including 1.3.3.
Exploitation Mechanism
Exploiting this vulnerability requires no prior privileges and can be initiated remotely over a network, with user interaction necessary to trigger the malicious code.
Mitigation and Prevention
Learn how to address and prevent the CVE-2021-38321 vulnerability in this section.
Immediate Steps to Take
To safeguard your WordPress site, it is advised to uninstall the Custom Menu Plugin immediately. This action can prevent any potential exploitation of the vulnerability.
Long-Term Security Practices
Incorporate robust security practices such as regular security audits, secure coding practices, and staying informed about plugin vulnerabilities to enhance long-term security.
Patching and Updates
Stay vigilant for security updates or patches released by plugin developers. Timely installation of updates can mitigate the risk of exploitation by addressing known vulnerabilities.