Improper Link Resolution Before File Access ('Link Following')
Multiple open redirect vulnerabilities in Joomla! 1.5 before 1.5.7 allow remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a "passed in" URL.
CWE-59 - Improper Link Resolution Before File Access
'Improper link resolution before file access' occurs when software accesses a file resource but fails to verify that the file isn't a link or shortcut to another file. An attacker can potentially gain access to arbitrary files and from there the impact can vary, depending on the application, from sensitive data exposure to remote code execution.