IBM WebSphere Portal is prone to an unspecified open-redirection vulnerability.
An attacker can leverage this issue by constructing a crafted URI and enticing a user to follow it. When an unsuspecting victim follows the link, they may be redirected to an attacker-controlled site; this may aid in phishing attacks. Other attacks are possible.
Information
IBM Websphere Portal 8.5
Exploit
An attacker can exploit this issue by enticing an unsuspecting victim to follow a malicious URI.
References: