CVE-2026-28189
Deferred Deferred - Pending Action

Unauthenticated Arbitrary File Deletion in Participants Database

Publication date: 2026-08-13

Last updated on: 2026-08-13

Assigner: Patchstack

Description
Unauthenticated Arbitrary File Deletion in Participants Database <= 2.7.8.4 versions.

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Meta Information

Published
2026-08-13
Last Modified
2026-08-13
Generated
2026-09-03
AI Q&A
2026-08-13
EPSS Evaluated
2026-09-01
NVD
CVE-2026-28189
EUVD
EUVD-2026-57967

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
participants_database participants_database to 2.7.8.4 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

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Executive Summary

This vulnerability is an unauthenticated arbitrary file deletion issue in Participants Database plugin versions up to 2.7.8.4. It allows an attacker to delete any file on the server without authentication.

Detection Guidance

This vulnerability allows unauthenticated arbitrary file deletion in Participants Database plugin versions <= 2.7.8.4. To detect it, check if you are running an affected version of the plugin. No specific commands are provided in the context, but you should verify plugin versions and monitor for unauthorized file deletions.

Impact Analysis

An attacker could exploit this to delete critical files on your server, potentially causing data loss, system crashes, or disrupting services. This could lead to website downtime or permanent damage if backups are unavailable.

Compliance Impact

This vulnerability allows unauthenticated arbitrary file deletion, which could lead to unauthorized data destruction or manipulation. For GDPR, this may violate integrity and availability principles, potentially causing data breaches or loss of personal data. HIPAA requires safeguarding protected health information; unauthorized deletion could compromise compliance with access and integrity requirements.

Mitigation Strategies

Update the Participants Database plugin to the latest version (2.7.8.5 or higher) to patch the arbitrary file deletion vulnerability.

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