CVE-2024-6844
Inconsistent CORS Matching Due to Handling of '+' in URL Path in corydolphin/flask-cors
- State
- Published
- Severity
- 5.3 Medium
- Published
- Mar 20, 2025
- Updated
- Nov 3, 2025
- Reserved
- Jul 17, 2024
Description
A vulnerability in corydolphin/flask-cors version 4.0.1 allows for inconsistent CORS matching due to the handling of the '+' character in URL paths. The request.path is passed through the unquote_plus function, which converts the '+' character to a space ' '. This behavior leads to incorrect path normalization, causing potential mismatches in CORS configuration. As a result, endpoints may not be matched correctly to their CORS settings, leading to unexpected CORS policy application. This can cause unauthorized cross-origin access or block valid requests, creating security vulnerabilities and usability issues.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.0 | 5.3 Medium | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | @huntr_ai |
Weaknesses
- CWE-346 Origin Validation Error
Affected Products
| Product | Versions |
|---|---|
corydolphin/flask-corscorydolphin |
|
References
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