CVE-2026-59555
Received Received - Intake

Unauthenticated Arbitrary File Deletion in Participants Database

Publication date: 2026-07-23

Last updated on: 2026-07-23

Assigner: Patchstack

Description
Unauthenticated Arbitrary File Deletion in Participants Database <= 2.7.8.3 versions.

CVSS Scores

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Meta Information

Published
2026-07-23
Last Modified
2026-07-23
Generated
2026-07-23
AI Q&A
2026-07-23
EPSS Evaluated
N/A
NVD
CVE-2026-59555
EUVD
EUVD-2026-48201

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
xnau_webdesign participants_database to 2.7.8.3 (inc)
participants_database participants_database to 2.7.8.3 (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

CVE-2026-59555 is an unauthenticated arbitrary file deletion vulnerability in the WordPress Participants Database Plugin versions 2.7.8.3 and earlier. An attacker can exploit this flaw without authentication to delete critical files from a website, potentially causing site malfunction or complete failure.

Detection Guidance

To detect this vulnerability, check if you are running Participants Database plugin version 2.7.8.3 or earlier. Look for signs of unauthorized file deletions or suspicious activity in server logs. Patchstack provides a mitigation rule to temporarily block attacks until the update is applied.

Impact Analysis

This vulnerability allows an unauthenticated attacker to delete important files on your website, which could disrupt its functionality or make it completely inaccessible. It poses a high risk of exploitation in mass campaigns targeting many websites.

Mitigation Strategies

Immediately update the Participants Database plugin to version 2.7.8.4 or later. If immediate updating is not possible, apply Patchstack's mitigation rule to block attacks temporarily. Ensure all critical files are backed up before making changes.

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