CVE-2021-32805

URL Redirection to Untrusted Site ('Open Redirect') in Flask-AppBuilder

Description

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.

Category

7.2
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.19%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: dpgaspar Flask-AppBuilder
Published at:
Updated at:

References

Link Tags
https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-624f-cqvr-3qw4 third party advisory
https://github.com/dpgaspar/Flask-AppBuilder/commit/6af28521589599b1dbafd6313256229ee9a4fa74 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-32805?
CVE-2021-32805 has been scored as a high severity vulnerability.
How to fix CVE-2021-32805?
To fix CVE-2021-32805, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-32805 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-32805 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-32805?
CVE-2021-32805 affects dpgaspar Flask-AppBuilder.
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