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.
Published 2021-12-09 17:15:08
Updated 2021-12-15 14:40:24
Source GitHub, Inc.
View at NVD,   CVE.org
Vulnerability category: BypassGain privilege

Products affected by CVE-2021-41265

Exploit prediction scoring system (EPSS) score for CVE-2021-41265

0.19%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 55 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-41265

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.5
MEDIUM AV:N/AC:L/Au:S/C:P/I:P/A:P
8.0
6.4
NIST
8.8
HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.8
5.9
NIST
8.1
HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
2.8
5.2
GitHub, Inc.

CWE ids for CVE-2021-41265

  • When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
    Assigned by: security-advisories@github.com (Primary)

References for CVE-2021-41265

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