{"id":"CVE-2025-24023","aliases":["GHSA-p8q5-cvwx-wvwp","PYSEC-2025-15"],"url":"https://o3.security/vulnerability/CVE-2025-24023","summary":"Observable Response Discrepancy in flask-appbuilder","details":"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.","published":"2025-03-03T15:25:55.437Z","modified":"2026-07-15T01:49:12.221186163Z","cvss":{"score":3.7,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"flask-appbuilder","fixedVersion":"4.5.3"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/24xxx/CVE-2025-24023.json"},{"type":"ADVISORY","url":"https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-p8q5-cvwx-wvwp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-24023"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:12.221186163Z"}}