VulnerabilityAnalyzed

CVE-2025-24023

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.

MEDIUM 5.3EPSS 0.33%

Does this matter?

Lower severity and a low EPSS score (0.33%). Track it; it rarely justifies an emergency change on its own.

Description

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.

CVSS 3.1: 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.33% probability · 25th percentile
CISA KEV: Not listed
Weakness: CWE-204, CWE-203
Affected: dpgaspar/flask-appbuilder
Source: security-advisories@github.com

References

https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-p8q5-cvwx-wvwpVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.