CVE-2025-51503: Microweber

High severity, CVSS 7.6. EPSS: 0.5% chance of exploitation in the next 30 days.

A Stored Cross-Site Scripting (XSS) vulnerability in Microweber CMS 2.0 allows attackers to inject malicious scripts into user profile fields, leading to arbitrary JavaScript execution in admin browsers.

Affected products

• Microweber Microweber: version 2.0.0 only

Published 2025-07-31. Last modified 2026-06-17.