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TI-2023-16956 Aliases CVE-2023-34110GHSA-jhpr-j7cq-3jp3

Flask-AppBuilder vulnerable to possible disclosure of sensitive information on user error

Priority LOW 15CWE-209Published · Updated

Key facts

Attack vector
Network
Privileges required
High
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 · CNA. Fix status from CNA and GitHub. Impact type from CWE-209.

Summary

Flask-AppBuilder is an application development framework, built on top of Flask. Prior to version 4.3.2, an authenticated malicious actor with Admin privileges, could by adding a special character on the add, edit User forms trigger a database error, this error is surfaced back to this actor on the UI. On certain database engines this error can include the entire user row including the pbkdf2:sha256 hashed password. This vulnerability has been fixed in version 4.3.2.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00676 52nd percentileScored 2026-11-07
Fix Fixed Flask-AppBuilder (dpgaspar): 4.3.2Flask-AppBuilder (PyPI): 4.3.2

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 4.3.24.3.2Patch availableCNA
—Flask-AppBuilder (PyPI)before 4.3.24.3.2Patch availableGHSA-jhpr-j7cq-3jp3
  • Flask-AppBuilder Vendordpgaspar Affected before 4.3.2 Fixed in 4.3.2 Patch available CNA
  • Flask-AppBuilder (PyPI) Vendor— Affected before 4.3.2 Fixed in 4.3.2 Patch available GHSA-jhpr-j7cq-3jp3

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:flask-appbuilder_project:flask-appbuilder:*:*:*:*:*:*:*:*before 4.3.2VulnerableFlask-appbuilder Project
  • cpe:2.3:a:flask-appbuilder_project:flask-appbuilder:*:*:*:*:*:*:*:* Versions before 4.3.2 Vulnerable ·Flask-appbuilder Project

Remediation

  • Fix · CNA Flask-AppBuilder (dpgaspar) Fixed in 4.3.2
  • Fix · GHSA-jhpr-j7cq-3jp3 Flask-AppBuilder (PyPI) Fixed in 4.3.2 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-34110
  2. 2026-10-03 Alias added: GHSA-jhpr-j7cq-3jp3

References

Patch 2

Advisory 2

Other 3

  • 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 13 →

Sources

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