CVE-2025-32962 – flask-appbuilder

Package

Manager: pip
Name: flask-appbuilder
Vulnerable Version: >=0 <4.6.2

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00038 pctl0.1038

Details

Flask-AppBuilder open redirect vulnerability using HTTP host injection ### Impact Flask-AppBuilder 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. ### Patches 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. Examples: ``` FAB_SAFE_REDIRECT_HOSTS = ["yourdomain.com", "sub.yourdomain.com", "*.yourcompany.com"] ``` ### Workarounds Use a Reverse Proxy to Enforce Trusted Host Headers ### References _Are there any links users can visit to find out more?_

Metadata

Created: 2025-05-16T17:28:25Z
Modified: 2025-05-16T17:28:25Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/05/GHSA-99pm-ch96-ccp2/GHSA-99pm-ch96-ccp2.json
CWE IDs: ["CWE-601"]
Alternative ID: GHSA-99pm-ch96-ccp2
Finding: F156
Auto approve: 1