mod_auth_mellon through 0.14.2 has an Open Redirect via the login?ReturnTo= substring, as demonstrated by omitting the // after http: in the target URL.
CWE-601
CVE-2019-12783
An issue was discovered in Verint Impact 360 15.1. At wfo/control/signin, the rd parameter can accept a URL, to which users will be redirected after a successful login. In conjunction with CVE-2019-12784, this can be used by attackers to “crowdsource” bruteforce login attempts on the target site, allowing them to guess and potentially compromise valid credentials without ever sending any traffic from their own machine to the target site.
CVE-2019-11585
The startup.jsp resource in Jira before version 7.13.6, from version 8.0.0 before version 8.2.3, and from version 8.3.0 before version 8.3.2 allows remote attackers to redirect users to a different website which they may use as part of performing a phishing attack via an open redirect.
CVE-2019-11589
The ChangeSharedFilterOwner resource in Jira before version 7.13.6, from version 8.0.0 before version 8.2.3, and from version 8.3.0 before version 8.3.2 allows remote attackers to attack users, in some cases be able to obtain a user’s Cross-site request forgery (CSRF) token, via a open redirect vulnerability.
CVE-2019-11269
Spring Security OAuth versions 2.3 prior to 2.3.6, 2.2 prior to 2.2.5, 2.1 prior to 2.1.5, and 2.0 prior to 2.0.18, as well as older unsupported versions could be susceptible to an open redirector attack that can leak an authorization code. A malicious user or attacker can craft a request to the authorization endpoint using the authorization code grant type, and specify a manipulated redirection URI via the redirect_uri parameter. This can cause the authorization server to redirect the resource owner user-agent to a URI under the control of the attacker with the leaked authorization code.
CVE-2019-11016
Elgg before 1.12.18 and 2.3.x before 2.3.11 has an open redirect.