CVE-2026-75962

The Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'useremail' parameter in all versions up to, and including, 4.0.1 due to insufficient input sanitization and...

CVE-2026-75962

The Post SMTP WordPress plugin is vulnerable to Stored Cross-Site Scripting (XSS) in all versions up to and including 4.0.1 . The root cause is insufficient input sanitization and output escaping regarding the 'user_email' parameter. Attackers can bypass the plugin's validator by using numeric HT...

EUVD-2026-92961

The Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'useremail' parameter in all versions up to, and including, 4.0.1 due to insufficient input sanitization and...