Origin Validation Error Affecting @koa/cors package, versions <5.0.0
Threat Intelligence
EPSS
0.05% (19th
percentile)
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Test your applications- Snyk ID SNYK-JS-KOACORS-6117545
- published 12 Dec 2023
- disclosed 11 Dec 2023
- credit PawelJ-PL
Introduced: 11 Dec 2023
CVE-2023-49803 Open this link in a new tabHow to fix?
Upgrade @koa/cors to version 5.0.0 or higher.
Overview
@koa/cors is a Cross-Origin Resource Sharing(CORS) for koa
Affected versions of this package are vulnerable to Origin Validation Error. An attacker can bypass the Same Origin Policy (SOP) by sending a request from an untrusted origin. This is only exploitable if the middleware is used in a production environment without proper origin restrictions.
References
CVSS Scores
version 3.1