flaskparser.py in Webargs 5.x up to and including 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.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
webargs project webargs |
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