mView 豆瓣电影 Plugin Remote Code Execution via Arbitrary File Upload

Executive Summary

The mView 豆瓣电影 WordPress plugin through version 1.0.3 has an arbitrary file upload vulnerability. It fails to validate file type, name, or source when fetching files remotely. The plugin also lacks capability or authorization checks before saving files to a web-accessible directory. This allows any authenticated user, including subscribers, to upload arbitrary PHP files that can be executed remotely, leading to remote code execution.

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Detection Guidance

Check if the mView 豆瓣电影 WordPress plugin version 1.0.3 or below is installed. Look for unauthorized PHP files in web-accessible directories. Review server logs for suspicious file uploads or execution attempts by authenticated users.

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Impact Analysis

This vulnerability allows attackers with even low-level access (like subscribers) to upload malicious PHP files to your server. These files can then be executed to take control of your website, steal data, or perform other harmful actions. It compromises the security of your WordPress site and potentially your entire server.

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Compliance Impact

This vulnerability can lead to data breaches, unauthorized access, and loss of sensitive data, which directly violates compliance requirements under GDPR and HIPAA. Organizations may face legal penalties, fines, and reputational damage due to non-compliance resulting from this security flaw.

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Mitigation Strategies

Update the mView 豆瓣电影 plugin to the latest version. Remove write permissions for non-admin users on web directories. Implement strict file upload validation to block PHP files. Monitor for unusual activity from subscriber accounts.

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