Apache Shiro before 1.13.0 or 2.0.0-alpha-4, may be susceptible to a path traversal attack that results in an authentication bypass when used together with path rewriting

Mitigation: Update to Apache Shiro 1.13.0+ or 2.0.0-alpha-4+, or ensure blockSemicolon is enabled (this is the default).

Apache Shiro could allow a remote attacker to conduct phishing attacks, caused by an open redirect vulnerability when "form" authentication is used. An attacker could exploit this vulnerability using a specially crafted URL to redirect a victim to arbitrary Web sites.