Unauthenticated Broken Access Control in Arvow AI SEO Writer

Executive Summary

This is an unauthenticated broken access control vulnerability in the Arvow AI SEO Writer WordPress plugin versions 1.5.3 and below. It allows unauthenticated users to perform actions that require higher privileges due to missing authorization, authentication, or nonce token checks.

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Detection Guidance

Check if the Arvow AI SEO Writer plugin version 1.5.3 or below is installed on your WordPress site. Log in to your WordPress dashboard and navigate to Plugins > Installed Plugins to verify the version. Alternatively, use the command: wp plugin list --name=arvow-ai-seo-writer to check the version via WP-CLI.

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Impact Analysis

Unauthenticated attackers could exploit this to perform privileged actions on affected websites, potentially leading to unauthorized content changes, data access, or other malicious activities. The high CVSS score of 7.5 indicates significant risk.

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Compliance Impact

This vulnerability could lead to unauthorized access or modifications to sensitive data, which may violate compliance requirements under GDPR (data protection) and HIPAA (health information privacy). Unauthorized access risks exposing personal or protected health data, potentially resulting in legal penalties or breaches of regulatory standards.

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Mitigation Strategies

Update the Arvow AI SEO Writer plugin to version 1.5.4 or later immediately. If updating is not possible, apply the mitigation rule provided by Patchstack to block attacks until the plugin is updated. Seek assistance from a hosting provider or web developer if needed.

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