CVE-2021-24159 : Exploit Details and Defense Strategies
Learn about CVE-2021-24159 affecting Contact Form 7 Style WordPress plugin <= 3.1.9. Find out how attackers can inject malicious JavaScript and steps to mitigate the security risk.
A detailed overview of CVE-2021-24159, a vulnerability in Contact Form 7 Style WordPress plugin up to version 3.1.9 that poses a security risk to websites.
Understanding CVE-2021-24159
This section delves into the specifics of the CVE-2021-24159 vulnerability affecting Contact Form 7 Style WordPress plugin.
What is CVE-2021-24159?
CVE-2021-24159 is a Cross-Site Request Forgery (CSRF) vulnerability that allows attackers to inject malicious JavaScript through the custom CSS feature of the Contact Form 7 Style plugin.
The Impact of CVE-2021-24159
This vulnerability could enable an attacker to manipulate CSS settings on affected websites by tricking site administrators into executing a malicious request.
Technical Details of CVE-2021-24159
Detailed technical insights into the CVE-2021-24159 vulnerability in Contact Form 7 Style plugin.
Vulnerability Description
The lack of sanitization and nonce protection on the custom CSS feature allows attackers to craft requests leading to the injection of malicious JavaScript on vulnerable sites.
Affected Systems and Versions
Contact Form 7 Style plugin versions including and below 3.1.9 are susceptible to this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by enticing site administrators to click on a link or attachment, triggering the malicious request and updating CSS settings with harmful JavaScript.
Mitigation and Prevention
Guidelines to mitigate and prevent the exploitation of CVE-2021-24159 vulnerability in Contact Form 7 Style plugin.
Immediate Steps to Take
Site administrators should ensure immediate patching of the plugin to prevent exploitation of this vulnerability.
Long-Term Security Practices
Adopting secure coding practices, regular security audits, and educating users can help enhance the overall security posture of a website.
Patching and Updates
Regularly update the Contact Form 7 Style plugin to the latest version to safeguard against known vulnerabilities.