CVE-2021-42358 : Security Advisory and Response
Learn about CVE-2021-42358 impacting Contact Form With Captcha plugin <= 1.6.2. Take immediate steps to prevent Cross-Site Request Forgery attacks. Uninstall the plugin and practice long-term security measures.
The Contact Form With Captcha WordPress plugin is vulnerable to Cross-Site Request Forgery, allowing attackers to inject arbitrary web scripts in versions up to and including 1.6.2.
Understanding CVE-2021-42358
What is CVE-2021-42358?
The CVE-2021-42358 vulnerability in Contact Form With Captcha plugin enables Cross-Site Request Forgery due to missing nonce validation during contact form submission.
The Impact of CVE-2021-42358
This vulnerability has a high severity impact, affecting confidentiality, integrity, and availability with a CVSS base score of 8.8.
Technical Details of CVE-2021-42358
Vulnerability Description
The flaw allows attackers to perform CSRF attacks by injecting malicious scripts via the ~/cfwc-form.php file.
Affected Systems and Versions
- Product: Contact Form With Captcha
- Vendor: Contact Form With Captcha
- Versions Affected: <= 1.6.2
Exploitation Mechanism
- Attack Vector: Network
- User Interaction: Required
- Privileges Required: None
- Attack Complexity: Low
Mitigation and Prevention
Immediate Steps to Take
- Uninstall the Contact Form With Captcha plugin from your WordPress site immediately.
Long-Term Security Practices
- Regularly update all plugins and themes to prevent known vulnerabilities.
- Employ security plugins that provide additional layers of protection.
- Educate users on safe practices to mitigate the risk of similar attacks.
Patching and Updates
- Stay informed about security advisories and apply patches promptly to secure your WordPress environment.