CVE-2023-33961: Leantime

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

Leantime is a lean open source project management system. Starting in version 2.3.21, an authenticated user with commenting privileges can inject malicious Javascript into a comment. Once the malicious comment is loaded in the browser by a user, the malicious Javascript code executes. As of time of publication, a patch does not exist.

Affected products

• Leantime Leantime: from 2.3.21

Published 2023-05-30. Last modified 2026-06-17.