Description
Flask-AppBuilder is an application development framework built on top of Flask. Versions prior to 4.6.2 would allow for a malicious unauthenticated actor to perform an open redirect by manipulating the Host header in HTTP requests. Flask-AppBuilder 4.6.2 introduced the `FAB_SAFE_REDIRECT_HOSTS` configuration variable, which allows administrators to explicitly define which domains are considered safe for redirection. As a workaround, use a reverse proxy to enforce trusted host headers.
Published: 2025-05-16
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2025-15450 Flask-AppBuilder open redirect vulnerability using HTTP host injection
Github GHSA Github GHSA GHSA-99pm-ch96-ccp2 Flask-AppBuilder open redirect vulnerability using HTTP host injection
History

Fri, 19 Sep 2025 18:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:dpgaspar:flask-appbuilder:*:*:*:*:*:*:*:*

Fri, 16 May 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 16 May 2025 14:00:00 +0000

Type Values Removed Values Added
Description Flask-AppBuilder is an application development framework built on top of Flask. Versions prior to 4.6.2 would allow for a malicious unauthenticated actor to perform an open redirect by manipulating the Host header in HTTP requests. Flask-AppBuilder 4.6.2 introduced the `FAB_SAFE_REDIRECT_HOSTS` configuration variable, which allows administrators to explicitly define which domains are considered safe for redirection. As a workaround, use a reverse proxy to enforce trusted host headers.
Title Flask-AppBuilder open redirect vulnerability using HTTP host injection
Weaknesses CWE-601
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}


Subscriptions

Dpgaspar Flask-appbuilder
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-05-16T14:53:52.917Z

Reserved: 2025-04-14T21:47:11.453Z

Link: CVE-2025-32962

cve-icon Vulnrichment

Updated: 2025-05-16T14:53:47.737Z

cve-icon NVD

Status : Analyzed

Published: 2025-05-16T14:15:31.190

Modified: 2025-09-19T18:04:24.427

Link: CVE-2025-32962

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-12T16:01:42Z

Weaknesses