CVE-2023-7027: Wpexperts Post Smtp

Medium severity, CVSS 5.4. EPSS: 0.9% chance of exploitation in the next 30 days.

The POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘device’ header in all versions up to, and including, 2.8.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Wpexperts Post Smtp: before 2.8.8 (fixed in 2.8.8)

Published 2024-01-03. Last modified 2026-06-17.