Description
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.
Metrics
CVSS 3.1 7.2/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- https://github.com/oauthjs/node-oauth2-server/blob/91d2cbe70a0eddc53d72def96864e2de0fd41703/lib/grant-types/authorization-code-grant-type.js#L143Exploit, Third Party Advisory
- https://github.com/oauthjs/node-oauth2-server/blob/91d2cbe70a0eddc53d72def96864e2de0fd41703/lib/validator/is.js#L12Exploit, Third Party Advisory
- https://github.com/oauthjs/node-oauth2-server/issues/637Issue Tracking, Third Party Advisory
- https://tools.ietf.org/html/rfc3986#section-3Third Party Advisory
- https://tools.ietf.org/html/rfc6749#section-3.1.2Third Party Advisory
- https://github.com/oauthjs/node-oauth2-server/blob/91d2cbe70a0eddc53d72def96864e2de0fd41703/lib/grant-types/authorization-code-grant-type.js#L143Exploit, Third Party Advisory
- https://github.com/oauthjs/node-oauth2-server/blob/91d2cbe70a0eddc53d72def96864e2de0fd41703/lib/validator/is.js#L12Exploit, Third Party Advisory
- https://github.com/oauthjs/node-oauth2-server/issues/637Issue Tracking, Third Party Advisory
- https://tools.ietf.org/html/rfc3986#section-3Third Party Advisory
- https://tools.ietf.org/html/rfc6749#section-3.1.2Third Party Advisory
Timeline
- Published
- Aug 29, 2022
- Last modified
- Jun 17, 2026
- NVD status
- Modified