CVE-2026-59555 CRITICAL

CVE-2026-59555: WordPress Participants Database plugin <= 2.7.8.3 - Arbitrary File Deletion vulnerability

Vendor Roland Barker

Product Participants Database

Weakness CWE-22 · Path traversal

Published July 23, 2026

Last update July 23, 2026

View on NVD All CVEs

CVSS base score

10.0/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality High

Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

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

Explanation of Vulnerability in Simple Terms

02Summary

Participants Database versions up to 2.7.8.3 contain a path traversal vulnerability that allows unauthenticated attackers to read arbitrary files from the server. An attacker can access sensitive files outside the intended directory by manipulating file paths in requests. This affects confidentiality, integrity, and availability of the affected system.

What an attacker can do

03Attacker Capabilities

Read, modify, or delete arbitrary files on the server without authentication.

Potential impact on your site

04Site Impact

Attackers can access database files, configuration files with credentials, and other sensitive data stored on your server.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

July 23, 2026 CVE published

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-59555 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/22.html AskarLabs — CWE-22 write-up Path Traversal

Related vulnerabilities

Identifiers

CVE CVE-2026-59555

CWE CWE-22

CVSS 10.0 / CRITICAL

Affected versions