Origin Validation Error Affecting flask-cors package, versions [0,]
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-FLASKCORS-9668952
- published7 Apr 2025
- disclosed20 Mar 2025
- credittomorrowisnew_
Introduced: 20 Mar 2025
NewCVE-2024-6844 (opens in a new tab)How to fix?
There is no fixed version for Flask-Cors.
Overview
Flask-Cors is an A Flask extension adding a decorator for CORS support
Affected versions of this package are vulnerable to Origin Validation Error due to the replacement of + characters with spaces in the unquote_plus() function, when handling the request.path parameter. An attacker can cause unauthorized cross-origin access or block valid requests by manipulating URL paths, leading to CORS policy bypasses.