CVE-2026-13596: Unknown Participants Database

Critical severity, CVSS 9.1. EPSS: 0.5% chance of exploitation in the next 30 days.

The Participants Database WordPress plugin before 2.7.8.4 does not properly sanitize and escape a user-supplied parameter before using it in a SQL query, allowing unauthenticated attackers to perform SQL injection attacks.

Affected products

• Unknown Participants Database: before 2.7.8.4 (fixed in 2.7.8.4)

Published 2026-08-01. Last modified 2026-08-26.