CVE-2021-32805

Flask-AppBuilder is an application development framework, built on top of Flask. In affected versions if using Flask-AppBuilder OAuth, an attacker can share a carefully crafted URL with a trusted domain for an application built with Flask-AppBuilder, this URL can redirect a user to a malicious site. This is an open redirect vulnerability. To resolve this issue upgrade to Flask-AppBuilder 3.2.2 or above. If upgrading is infeasible users may filter HTTP traffic containing ?next={next-site} where the next-site domain is different from the application you are protecting as a workaround.

Published: Sep 8, 2021
Updated: May 9, 2024
CVE: CVE-2021-32805
GHSA: GHSA-624f-cqvr-3qw4
Severity: Medium
Exploit:

CVSS v3:

Severity: Medium
Score: 6.1
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v2:

Severity: Medium
Score: 5.8
AV:N/AC:M/Au:N/C:P/I:P/A:N

CWEs:

CWE-601

Affected Software
References

Software	From	Fixed in
Flask-AppBuilder	-	3.3.2
dpgaspar / flask-appbuilder	-	3.3.2

https://github.com/dpgaspar/Flask-AppBuilder/commit/6af28521589599b1dbafd6313256229ee9a4fa74
https://github.com/dpgaspar/Flask-AppBuilder/releases/tag/v3.3.2
https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-624f-cqvr-3qw4
https://pypi.org/project/Flask-AppBuilder/

Vulnerability Database

CVE-2021-32805

Deep Security Visibility Without the Complexity