Multiple cross-site scripting (XSS) vulnerabilities in Phorum 3.4.5 and earlier allow remote attackers to inject arbitrary HTML or web script via (1) the phorum_check_xss function in common.php, (2) the EditError variable in profile.php, and (3) the Error variable in login.php.
SQL injection vulnerability in register.php for Phorum 3.4.5 and earlier allows remote attackers to execute arbitrary SQL commands via the hide_email parameter.
Multiple cross-site scripting (XSS) vulnerabilities in (1) login.php, (2) register.php, (3) post.php, and (4) common.php in Phorum before 3.4.3 allow remote attackers to inject arbitrary web script or HTML via unknown attack vectors.
Cross-site scripting (XSS) vulnerability in Phorum before 3.4.3 allows remote attackers to inject arbitrary web script and HTML tags via a message with a "<<" before a tag name in the (1) subject, (2) author's name, or (3) author's e-mail.
Phorum 3.0.7 allows remote attackers to change the administrator password without authentication via an HTTP request for admin.php3 that sets step, option, confirm and newPssword variables.
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.
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".
SQL injection vulnerability in read.php3 and other scripts in Phorum 3.0.7 allows remote attackers to execute arbitrary SQL queries via the sSQL parameter.