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CVE-2020-25032

Published: 31 August 2020

An issue was discovered in Flask-CORS (aka CORS Middleware for Flask) before 3.0.9. It allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
python-flask-cors
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (3.0.8-2ubuntu0.1)
groovy Ignored
(end of life)
hirsute Not vulnerable
(3.0.9-2)
impish Not vulnerable
(3.0.9-2)
jammy Not vulnerable
(3.0.9-2)
kinetic Not vulnerable
(3.0.9-2)
lunar Not vulnerable
(3.0.9-2)
trusty Does not exist

upstream
Released (3.0.9-1)
xenial Does not exist

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N