CVE-2025-53454: Rustaurius Ultimate Wp Mail

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Rustaurius Ultimate WP Mail ultimate-wp-mail allows Stored XSS.This issue affects Ultimate WP Mail: from n/a through <= 1.3.8.

Affected products

• Rustaurius Ultimate Wp Mail: up to and including 1.3.8

Published 2025-09-22. Last modified 2026-06-17.