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

2021-09-0817:45:14

CWE-601

GitHub_M

www.cve.org

7.2 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

29.3%

JSON

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.

CNA Affected

[
  {
    "product": "Flask-AppBuilder",
    "vendor": "dpgaspar",
    "versions": [
      {
        "status": "affected",
        "version": "< 3.3.2"
      }
    ]
  }
]