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TI-2025-17790 Aliases CVE-2025-24023GHSA-p8q5-cvwx-wvwp

Observable Response Discrepancy in flask-appbuilder

Priority LOW 24CWE-204Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-204.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00332 26th percentileScored 2026-11-07
Fix Fixed Flask-AppBuilder (dpgaspar): 4.5.3flask-appbuilder (PyPI): 4.5.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
dpgasparFlask-AppBuilderbefore 4.5.34.5.3Patch availableCNA
—flask-appbuilder (PyPI)before 4.5.34.5.3Patch availableGHSA-p8q5-cvwx-wvwp
  • Flask-AppBuilder Vendordpgaspar Affected before 4.5.3 Fixed in 4.5.3 Patch available CNA
  • flask-appbuilder (PyPI) Vendor— Affected before 4.5.3 Fixed in 4.5.3 Patch available GHSA-p8q5-cvwx-wvwp

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:dpgaspar:flask-appbuilder:*:*:*:*:*:*:*:*before 4.5.3Vulnerabledpgaspar
  • cpe:2.3:a:dpgaspar:flask-appbuilder:*:*:*:*:*:*:*:* Versions before 4.5.3 Vulnerable ·dpgaspar

Remediation

  • Fix · CNA Flask-AppBuilder (dpgaspar) Fixed in 4.5.3
  • Fix · GHSA-p8q5-cvwx-wvwp flask-appbuilder (PyPI) Fixed in 4.5.3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-24023
  2. 2026-10-03 Alias added: GHSA-p8q5-cvwx-wvwp

References

Advisory 2

Other 2

  • TI-2024-17946 Flask-AppBuilder's OAuth login page subject to Cross Site Scripting (XSS) CVSS 3.1MEDIUM 6.1
  • TI-2024-16581 Flask-AppBuilder incorrect authentication when using auth type OpenID CVSS 3.1CRITICAL 9.1
  • TI-2021-18097 Improper Authentication in Flask-AppBuilder CVSS 3.1HIGH 8.8
  • TI-2023-13466 No Rate Limiting on Login AUTH DB CVSS 3.1HIGH 7.5
  • TI-2021-12470 URL Redirection to Untrusted Site ('Open Redirect') in Flask-AppBuilder CVSS 3.1HIGH 7.2
  • TI-2022-06037 Observable Response Discrepancy in Flask-AppBuilder CVSS 3.1MEDIUM 5.3
See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences