Directory traversal vulnerability in download.php in Phorum 3.4 through 3.4.2 allows remote attackers to read arbitrary files.
admin.php in Phorum before 5.1.22 allows remote attackers to obtain the full path via the module[] parameter.
Backdoor in auth.php3 in Phorum 3.0.7 allows remote attackers to access restricted web pages via an HTTP request with the PHP_AUTH_USER parameter set to "boogieman".
Directory traversal vulnerability in Phorum 3.0.7 allows remote Phorum administrators to read arbitrary files via ".." (dot dot) sequences in the default .langfile name field in the Master Settings administrative function, which causes the file to be displayed in admin.php3.
Phorum 5.2.15a allows remote attackers to obtain sensitive information via a direct request to a .php file, which reveals the installation path in an error message, as demonstrated by css.php and certain other files.