Vulnerability Details : CVE-2020-7965
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.
Vulnerability category: Cross-site request forgery (CSRF)
Products affected by CVE-2020-7965
- cpe:2.3:a:webargs_project:webargs:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-7965
0.17%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 34 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-7965
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2020-7965
-
The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-7965
-
https://webargs.readthedocs.io/en/latest/changelog.html
Changelog — webargs 5.4.0 documentationRelease Notes;Vendor Advisory
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