dpgaspar Flask-AppBuilder up to 4.8.0 improper authentication

Summaryinfo

A vulnerability categorized as critical has been discovered in dpgaspar Flask-AppBuilder up to 4.8.0. This affects an unknown function. Executing a manipulation can lead to improper authentication. This vulnerability is handled as CVE-2025-58065. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in dpgaspar Flask-AppBuilder up to 4.8.0 and classified as critical. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-58065 since 08/22/2025. The exploitation appears to be easy. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 4.8.1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch a942a9cc5775752f9a02f97fd8198dd288fa93ee is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-28980). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• dpgaspar

Name

• Flask-AppBuilder

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7
• 4.8.0

License

• open-source

Website

• Product: https://github.com/dpgaspar/Flask-AppBuilder/

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Once again VulDB remains the best source for vulnerability data.

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