CVE-2025-24023: Dpgaspar Flask-Appbuilder

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Flask-AppBuilder is an application development framework. Prior to 4.5.3, Flask-AppBuilder allows unauthenticated users to enumerate existing usernames by timing the response time from the server when brute forcing requests to login. This vulnerability is fixed in 4.5.3.

Affected products

• Dpgaspar Flask-Appbuilder: before 4.5.3 (fixed in 4.5.3)

Published 2025-03-03. Last modified 2026-06-17.