CVE-2023-6620: Wpexperts Post Smtp

High severity, CVSS 7.2. EPSS: 14.1% chance of exploitation in the next 30 days.

The POST SMTP Mailer WordPress plugin before 2.8.7 does not properly sanitise and escape several parameters before using them in SQL statements, leading to a SQL injection exploitable by high privilege users such as admin.

Affected products

• Wpexperts Post Smtp: before 2.8.7 (fixed in 2.8.7)

Published 2024-01-15. Last modified 2026-06-17.