CVE-2021-4390
WordPress vulnerability analysis and mitigation

Overview

CVE-2021-4390 is a security vulnerability affecting the WordPress plugin Contact Form 7 Style versions 3.2 and below. The vulnerability was publicly disclosed on June 21, 2021, and was discovered by security researcher Jerome Bruandet from NinTechNet (WPScan).

Technical details

The vulnerability is classified as a Cross-Site Request Forgery (CSRF) bypass with a CVSS score of 4.3 (Medium). It is categorized under CWE-352 and falls within the OWASP Top 10 category A2: Broken Authentication and Session Management. The plugin fails to implement proper CSRF protections for certain actions, making it vulnerable to unauthorized requests (WPScan, Wordfence).

Impact

The vulnerability allows unauthenticated attackers to perform actions on behalf of authenticated users by tricking them into submitting specially crafted requests. This could potentially lead to unauthorized modifications of form settings and configurations (WPScan).

Additional resources


SourceThis report was generated using AI

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