CVE-2021-32805 HIGH

CVE-2021-32805: URL Redirection to Untrusted Site ('Open Redirect') in Flask-AppBuilder

Vendor Dpgaspar
Product Flask-AppBuilder
Weakness CWE-601 · Open redirect
Published September 8, 2021
Last update August 3, 2024

CVSS base score

7.2/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

September 8, 2021 CVE published
August 3, 2024 Record updated