Participants Database <= 2.7.8.3 - Unauthenticated Arbitrary File Deletion

9.1
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE CVE-2026-59555
CVSS 9.1 (Critical)
Publicly Published July 22, 2026
Last Updated July 29, 2026
Researcher hhhai

Description

The Participants Database plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in all versions up to, and including, 2.7.8.3. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php).

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Vulnerability Details for Participants Database

Software Type Plugin
Software Slug participants-database (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.7.8.4, or a newer patched version
Affected Version
  • <= 2.7.8.3
Patched Version
  • 2.7.8.4

Recent vulnerabilities in Participants Database

# Title CVE ID CVSS Researchers Date
1 Participants Database <= 2.7.8.3 - Missing Authorization to Unauthenticated Arbitrary Record Update / Sensitive Information Exposure via 'id' Parameter CVE-2026-11354 5.3 Robert Hartinger July 23, 2026
2 Participants Database <= 2.7.8.4 - Missing Authorization CVE-2026-27423 4.3 Legion Hunter July 22, 2026
3 Participants Database <= 2.7.8.3 - Unauthenticated SQL Injection CVE-2026-59525 7.5 L4m July 22, 2026
4 Participants Database <= 2.7.6.3 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2025-58008 6.4 zaim September 22, 2025
5 Participants Database <= 2.5.9.2 - Unauthenticated PHP Object Injection CVE-2024-43141 8.1 LVT-tholv2k August 7, 2024
6 Participants Database <= 2.5.5 - Missing Authorization CVE-2023-48751 5.3 beluga November 27, 2023
7 Participants Database <= 2.4.9 - Authenticated(Administrator+) Stored Cross-Site Scripting via plugin settings 4.4 May 3, 2023
8 Participants Database <= 2.4.9 - Cross-Site Request Forgery via _process_general CVE-2023-31235 5.4 Skalucy May 3, 2023
9 Participants Database <= 2.4.5 - Cross Site Request Forgery CVE-2022-47612 4.3 rezaduty January 20, 2023
10 Participants Database <= 1.9.5.5 - SQL Injection CVE-2020-8596 7.5 Teacish February 10, 2020

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