Improper Input Validation Affecting flask package, versions [,0.12.3)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.37% (73rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-PYTHON-FLASK-42185
  • published 21 Aug 2018
  • disclosed 10 Apr 2018
  • credit Unknown

How to fix?

Upgrade flask to version 0.12.3 or higher.

Overview

flask is a lightweight WSGI web application framework.

Affected versions of this package are vulnerable to Improper Input Validation. It did not detect the encoding of incoming JSON data as one of the supported UTF encodings, and allowed arbitrary encodings from the request.

CVSS Scores

version 3.1
Expand this section

Snyk

7.5 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
Expand this section

NVD

7.5 high
Expand this section

SUSE

3.3 low
Expand this section

Red Hat

7.5 high