CVE-2021-24533: Webfactoryltd Maintenance

Medium severity, CVSS 4.8. EPSS: 0.6% chance of exploitation in the next 30 days.

The Maintenance WordPress plugin before 4.03 does not sanitise or escape some of its settings, allowing high privilege users such as admin to se Cross-Site Scripting payload in them (even when the unfiltered_html capability is disallowed), which will be triggered in the frontend

Affected products

• Webfactoryltd Maintenance: before 4.03 (fixed in 4.03)

Published 2021-08-23. Last modified 2026-06-17.