// For flags

CVE-2021-32805

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

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Flask-AppBuilder es un marco de desarrollo de aplicaciones, construido sobre Flask. En versiones afectadas , si es usado Flask-AppBuilder OAuth, un atacante puede compartir una URL cuidadosamente diseñada con un dominio confiables para una aplicación construida con Flask-AppBuilder, esta URL puede redirigir a un usuario a un sitio malicioso. Esta es una vulnerabilidad de redirección abierta. Para resolver este problema, actualice a Flask-AppBuilder versión 3.2.2 o superior. Si la actualización es inviable, los usuarios pueden filtrar el tráfico HTTP que contenga "?next={next-site}" donde el dominio "next-site" es diferente de la aplicación que está protegiendo como una solución

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-05-12 CVE Reserved
  • 2021-09-08 CVE Published
  • 2024-05-24 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Flask-appbuilder Project
Search vendor "Flask-appbuilder Project"
 Flask-appbuilder
Search vendor "Flask-appbuilder Project" for product "Flask-appbuilder"
 < 3.3.2
Search vendor "Flask-appbuilder Project" for product "Flask-appbuilder" and version " < 3.3.2"
-
Affected