CVE-2026-28189
HighCVSS 7.4Exploitation Probability (EPSS)
Low risk23th percentile - higher than 23% of all known CVEs
Summary
The Participants Database plugin versions up to 2.7.8.4 allow unauthenticated users to delete arbitrary files from the server.
Risk Assessment
An attacker can delete critical system files or data, potentially leading to service disruption or data loss.
Recommendation
Update the Participants Database plugin to the latest version that includes a fix for this vulnerability.
Other vulnerabilities in Participants Database
See all- CVE-2026-27423Medium
The Participants Database plugin for WordPress versions 2.7.8.4 and earlier contains a broken access control vulnerability exploitable by a Subscriber-level user.
- CVE-2026-13596Critical
The Participants Database WordPress plugin before version 2.7.8.4 does not properly sanitize and escape a user-supplied parameter before using it in a SQL query. This allows unauthenticated attackers to perform SQL injection attacks.
- CVE-2026-59555Critical
The Participants Database plugin versions up to 2.7.8.3 allow unauthenticated arbitrary file deletion.
- CVE-2026-59525Critical
The Participants Database plugin versions up to 2.7.8.3 contain an unauthenticated SQL injection vulnerability. An attacker can send crafted requests to execute arbitrary SQL queries.
- CVE-2026-11354Medium
The Participants Database plugin for WordPress up to version 2.7.8.3 is vulnerable to Sensitive Information Exposure via the 'id' parameter. An unauthenticated attacker can overwrite any participant record and hijack the private access link, gaining full read and edit access to personal data.
- CVE-2025-58008Medium
The Participants Database plugin by xnau webdesign has a stored XSS vulnerability due to improper neutralization of input during web page generation. Affects versions up to and including 2.7.6.3.
Original NVD description (English source)
Unauthenticated Arbitrary File Deletion in Participants Database <= 2.7.8.4 versions.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS