Unauthenticated Content Injection in Simple Cloudflare Turnstile

Executive Summary

This vulnerability is an unauthenticated content injection flaw in the Simple Cloudflare Turnstile WordPress plugin versions 1.42.1 and below. It allows attackers to inject malicious content into website pages or posts without authentication, potentially creating phishing pages.

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Detection Guidance

Check if the Simple Cloudflare Turnstile plugin version is 1.42.1 or below. Look for unexpected content injections in website pages or posts. Use security plugins or tools to scan for unauthorized modifications.

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Impact Analysis

Attackers could exploit this to inject malicious content, such as phishing pages, into your website. This could deceive visitors, damage your site's reputation, and potentially lead to data breaches or further attacks. The CVSS score of 6.5 indicates moderate danger and a likelihood of widespread exploitation.

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Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by enabling attackers to inject malicious content, such as phishing pages, which may lead to unauthorized data collection or breaches. Unauthorized content injection could violate data protection principles under GDPR and compromise protected health information under HIPAA if exploited.

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Mitigation Strategies

Update the plugin to version 1.42.3 or later immediately. If updating is not possible, apply the mitigation rule provided by Patchstack or contact your hosting provider for assistance.

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