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.
Remediation
References
https://github.com/oauthjs/node-oauth2-server/issues/637
https://github.com/oauthjs/node-oauth2-server/blob/91d2cbe70a0eddc53d72def96864e2de0fd41703/lib/validator/is.js#L12
https://tools.ietf.org/html/rfc6749#section-3.1.2
https://tools.ietf.org/html/rfc3986#section-3
https://github.com/oauthjs/node-oauth2-server/blob/91d2cbe70a0eddc53d72def96864e2de0fd41703/lib/grant-types/authorization-code-grant-type.js#L143
Related Vulnerabilities
CVE-2023-6394 Vulnerability in maven package io.quarkus:quarkus-smallrye-graphql
CVE-2020-29204 Vulnerability in maven package com.xuxueli:xxl-job-admin
CVE-2022-28220 Vulnerability in maven package org.apache.james.protocols:protocols-netty
CVE-2020-2110 Vulnerability in maven package org.jenkins-ci.plugins:script-security