CVE-2024-6844

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.
References
Link Resource
https://huntr.com/bounties/731a6cd4-d05f-4fe6-8f5b-fe088d7b34e0 Exploit Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:flask-cors_project:flask-cors:4.0.1:*:*:*:*:*:*:*

History

01 Aug 2025, 01:32

Type Values Removed Values Added
References () https://huntr.com/bounties/731a6cd4-d05f-4fe6-8f5b-fe088d7b34e0 - () https://huntr.com/bounties/731a6cd4-d05f-4fe6-8f5b-fe088d7b34e0 - Exploit, Third Party Advisory
CPE cpe:2.3:a:flask-cors_project:flask-cors:4.0.1:*:*:*:*:*:*:*
First Time Flask-cors Project flask-cors
Flask-cors Project
Summary
  • (es) Una vulnerabilidad en corydolphin/flask-cors versión 4.0.1 permite coincidencias CORS inconsistentes debido a la gestión del carácter "+" en las rutas URL. El archivo request.path se pasa a través de la función unquote_plus, que convierte el carácter "+" en un espacio. Este comportamiento provoca una normalización incorrecta de las rutas, lo que puede provocar discrepancias en la configuración CORS. Como resultado, los endpoints podrían no coincidir correctamente con su configuración CORS, lo que provoca la aplicación inesperada de políticas CORS. Esto puede provocar accesos no autorizados entre orígenes o bloquear solicitudes válidas, creando vulnerabilidades de seguridad y problemas de usabilidad.

20 Mar 2025, 10:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-03-20 10:15

Updated : 2025-08-01 01:32


NVD link : CVE-2024-6844

Mitre link : CVE-2024-6844

CVE.ORG link : CVE-2024-6844


JSON object : View

Products Affected

flask-cors_project

  • flask-cors
CWE
CWE-840

Business Logic Errors