PHP remote file inclusion vulnerability in includes/header_simple.php in Ultimate PHP Board (UPB) 2.0 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the _CONFIG[skin_dir] parameter.
Direct static code injection vulnerability in chat/login.php in Ultimate PHP Board (UPB) 2.0b1 and earlier allows remote attackers to inject arbitrary PHP code via the username parameter, which is injected into chat/text.php.
The installation of Ultimate PHP Board (UPB) 1.9.6 and earlier includes a default administrator login account and password, which allows remote attackers to gain privileges.
Ultimate PHP Board (UPB) 1.9.6 and earlier uses a cryptographically weak block cipher with a large key collision space, which allows remote attackers to determine a suitable decryption key given the plaintext and ciphertext by obtaining the plaintext password, which is sent when logging in, and the ciphertext, which is set in the pass_env cookie.
Ultimate PHP Board (UPB) 1.9.6 and earlier allows remote attackers to gain access via modified user_env, pass_env, power_env, and id_env parameters in a cookie, which comprise a persistent logon that does not vary across sessions.
register.php in Ultimate PHP Board (UPB) 1.9.6 and earlier allows remote attackers to create arbitrary accounts via the "[NR]" sequence in the signature field, which is used to separate multiple records.
Directory traversal vulnerability in newpost.php in Ultimate PHP Board (UPB) 1.9.6 and earlier allows remote attackers to overwrite arbitrary files via a .. (dot dot) sequence and trailing null (%00) byte in the id parameter, as demonstrated by injecting a Perl CGI script using "[NR]" sequences in the message parameter, then calling close.php with modified id and t_id parameters to chmod the script. NOTE: this issue might be resultant from dynamic variable evaluation.
Direct static code injection vulnerability in Ultimate PHP Board (UPB) 1.9.6 and earlier allows remote authenticated administrators to execute arbitrary PHP code via multiple unspecified "configuration fields" in (1) admin_chatconfig.php, (2) admin_configcss.php, (3) admin_config.php, or (4) admin_config2.php, which are stored as configuration settings. NOTE: this issue can be exploited by remote attackers by leveraging other vulnerabilities in UPB.
Multiple cross-site scripting vulnerabilities in Ultimate PHP Board (UPB) 1.9.6 GOLD and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) ref parameter to login.php, (2) id or (3) page parameter to viewtopic.php, id parameter to (4) profile.php, (5) newpost.php, (6) email.php, (7) icq.php, or (8) aol.php, (9) t_id parameter to newpost.php, (10) ref parameter to getpass.php, or (11) sText parameter to search.php.
Ultimate PHP Board (UPB) 1.9.6 GOLD allows remote attackers to obtain sensitive information via an invalid (zero) id parameter to (1) viewtopic.php, (2) profile.php, or (3) newpost.php, which reveals the path in an error message.