Authenticated File Deletion in WebTotem Backups WordPress Plugin

Executive Summary

The WebTotem Backups WordPress plugin through version 1.0.1 has a vulnerability that allows any authenticated user, including low-privilege users like subscribers, to delete arbitrary files on the server. This happens because the plugin does not validate file paths, check user permissions, or enforce CSRF protections properly.

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Detection Guidance

Check if the WebTotem Backups plugin version 1.0.1 or earlier is installed on your WordPress site. Look for unauthorized file deletions or suspicious activity in server logs. No specific commands are provided in the context.

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Impact Analysis

This vulnerability can lead to a complete site takeover. Attackers could delete critical files, including WordPress core files, themes, plugins, or configuration files, making the website unusable or allowing further malicious actions.

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Compliance Impact

This vulnerability could lead to unauthorized file deletion on the server, potentially exposing sensitive data or disrupting operations. For GDPR, it may result in unauthorized access or loss of personal data, violating principles of integrity and confidentiality. For HIPAA, it could compromise protected health information by allowing unauthorized modifications or deletions.

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Mitigation Strategies

Immediately remove or disable the WebTotem Backups plugin if installed. Restrict file deletion permissions on the server. Monitor for signs of exploitation. No official patch is available yet.

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