WordPress security changelog
CRITICAL CVE-2026-13596 Deferred

Participants Database exposes an unauthenticated SQL-injection path

Participants Database before 2.7.8.4 places an unauthenticated request parameter into a database query without sufficient sanitization or escaping. A visitor can alter the generated SQL and query information available to the WordPress database account. The published.

CVE / CNA score 9.1 CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD score Pending NVD has not published its own CVSS assessment.
Component
Participants Database
Plugin slug
participants-database
Affected
< 2.7.8.4
Safe version
2.7.8.4
Published
Aug 01, 2026
Weakness
CWE-89 — Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

This CVE was published Aug 01, 2026 and is one of 16 known issues for this plugin.

Update, patch or deactivate.

Update Participants Database to 2.7.8.4 or later. Review web and database logs for SQL syntax or time-delay probes against plugin requests, rotate credentials and secrets if database disclosure is suspected, and investigate data integrity if injected queries may have modified records.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Primary and upstream sources