CVE-2021-41265

Description

Flask-AppBuilder is a development framework built on top of Flask. Verions prior to 3.3.4 contain an improper authentication vulnerability in the REST API. The issue allows for a malicious actor with a carefully crafted request to successfully authenticate and gain access to existing protected REST API endpoints. This only affects non database authentication types and new REST API endpoints. Users should upgrade to Flask-AppBuilder 3.3.4 to receive a patch.

How to fix CVE-2021-41265

To remediate CVE-2021-41265, upgrade the affected package to a fixed version below.

• —upgrade to 3.3.4 or later
• —upgrade to eba517aab121afa3f3f2edb011ec6bc4efd61fbc or later

Is CVE-2021-41265 being exploited?

Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0, < 3.3.4
• from 0, < eba517aab121afa3f3f2edb011ec6bc4efd61fbc | from 0, < 3.3.4

CVSS scores

References (6)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-41265
• PATCHgithub.com/dpgaspar/Flask-AppBuilder
• WEBgithub.com/dpgaspar/Flask-AppBuilder/commit/eba517aab121afa3f3f2edb011ec6bc4efd61fbc
• WEBgithub.com/dpgaspar/Flask-AppBuilder/releases/tag/v3.3.4