Limited Media File Deletion in weForms WordPress Plugin

Executive Summary

The vulnerability in the weForms WordPress plugin allows unauthenticated attackers to delete arbitrary media files on the server due to insufficient file path validation in the weforms_delete_entry_attachments function. This flaw exists in versions up to and including 1.6.28. An attacker can exploit this by tricking an administrator into permanently deleting a form entry containing malicious file paths.

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Detection Guidance

Check for unauthorized media file deletions in WordPress uploads directory. Review server logs for suspicious activity related to the weforms_delete_entry_attachments function. Look for entries where an administrator permanently deletes form submissions.

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Impact Analysis

This vulnerability can lead to unauthorized deletion of important media files on your WordPress server. If exploited, it may disrupt website functionality, cause data loss, or allow further attacks by removing critical files. Attackers could target media libraries, backups, or other stored content.

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Compliance Impact

This vulnerability could impact compliance by potentially leading to unauthorized data deletion or loss of records. GDPR requires data integrity and availability, while HIPAA mandates protection of health information. Unauthorized file deletion may violate these requirements, especially if critical records are lost.

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Mitigation Strategies

• Update the weForms plugin to version 1.6.29 or later immediately.
• Review and remove any unauthorized media files in the WordPress uploads directory.
• Monitor server logs for further unauthorized deletion attempts.

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