HIGH7.2
GHSA-4rg6-fm25-gc34
oauth2-server through 3.1.1 vulnerable to Open Redirect
Details
In oauth2-server (aka node-oauth2-server) through 3.1.1, the value of the `redirect_uri` parameter received during the authorization and token request is checked against an incorrect URI pattern (`[a-zA-Z][a-zA-Z0-9+.-]+:`) before making a redirection. This allows a malicious client to pass an XSS payload through the redirect_uri parameter while making an authorization request. NOTE: this vulnerability is similar to CVE-2020-7741.
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Affected packages
npm/oauth2-server
Introduced in:
0No fixed version published yet for oauth2-server (npm). Pin to a known-safe version or switch to an alternative.
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-26938[ADVISORY]
- https://github.com/oauthjs/node-oauth2-server/issues/637[WEB]
- https://github.com/oauthjs/node-oauth2-server[PACKAGE]
- https://github.com/oauthjs/node-oauth2-server/blob/91d2cbe70a0eddc53d72def96864e2de0fd41703/lib/grant-types/authorization-code-grant-type.js#L143[WEB]
- https://github.com/oauthjs/node-oauth2-server/blob/91d2cbe70a0eddc53d72def96864e2de0fd41703/lib/validator/is.js#L12[WEB]
- https://tools.ietf.org/html/rfc3986#section-3[WEB]
- https://tools.ietf.org/html/rfc6749#section-3.1.2[WEB]