CVE-2020-7965

Published: Jan 29, 2020Modified: Jun 17, 2026

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: NVD

Description

flaskparser.py in Webargs 5.x through 5.5.2 doesn't check that the Content-Type header is application/json when receiving JSON input. If the request body is valid JSON, it will accept it even if the content type is application/x-www-form-urlencoded. This allows for JSON POST requests to be made across domains, leading to CSRF.

Affected (1)

Products: Webargs Project: Webargs

Webargs Project

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Webargs Project Webargs	From 5.0.0 to 5.5.2

Related CWEs

Cross-Site Request Forgery (CSRF)

The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.

References (2)

https://webargs.readthedocs.io/en/latest/changelog.html

Source: cve@mitre.org

Release NotesVendor Advisory

https://webargs.readthedocs.io/en/latest/changelog.html

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesVendor Advisory

Timeline

No history available yet.