ClanSphere 2011.3 is vulnerable to a local file inclusion (LFI) flaw due to improper handling of the cs_lang cookie parameter. The application fails to sanitize user-supplied input, allowing attackers to traverse directories and read arbitrary files outside the web root. The vulnerability is further exacerbated by null byte injection (%00) to bypass file extension checks.
A cross-site scripting (XSS) vulnerability in Clansphere CMS v2011.4 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Username parameter.
Cross-site scripting (XSS) vulnerability in ClanSphere 2011.4 allows remote attackers to inject arbitrary web script or HTML via the where parameter in a list action to index.php.
ClanSphere 2010.0 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 mods/board/attachment.php.
Multiple SQL injection vulnerabilities in ClanSphere 2009.0.3 and earlier allow remote attackers to execute arbitrary SQL commands via (1) the IP address to the cs_getip function in generate.php in the Captcha module, or (2) the s_email parameter to the cs_sql_select function in the MySQL database driver (mysql.php).