CVE-2025-58065: Flask App Builder has an Authentication Bypass vulnerability when using non AUTH_DB methods

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-09-11 · updated 2026-06-17
Weakness: CWE-287

Description

Flask-AppBuilder is an application development framework. Prior to version 4.8.1, when Flask-AppBuilder is configured to use OAuth, LDAP, or other non-database authentication methods, the password reset endpoint remains registered and accessible, despite not being displayed in the user interface. This allows an enabled user to reset their password and be able to create JWT tokens even after the user is disabled on the authentication provider. Users should upgrade to Flask-AppBuilder version 4.8.1 or later to receive a fix. If immediate upgrade is not possible, manually disable password reset routes in the application configuration; implement additional access controls at the web server or proxy level to block access to the reset my password URL; and/or monitor for suspicious password reset attempts from disabled accounts.

Affected products

dpgaspar Flask-AppBuilder: before 4.8.1 — fixed in 4.8.1

How to fix

Upgrade to a fixed version: dpgaspar Flask-AppBuilder 4.8.1. Check the vendor advisory for mitigations.

References

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