config/general.php in Quick.Cart 2.2 and earlier uses a default username and password, which allows remote attackers to access the application via a login action to admin.php. NOTE: this can be leveraged to upload and execute arbitrary code.

Multiple directory traversal vulnerabilities in Open Solution Quick.Cart 2.0, when register_globals is enabled and magic_quotes_gpc is disabled, allow remote attackers to include and execute arbitrary local files via a .. (dot dot) in the config[db_type] parameter to (1) categories.php, (2) couriers.php, (3) orders.php, and (4) products.php in actions_admin/; and (5) orders.php and (6) products.php in actions_client/; as demonstrated by injecting PHP sequences into an Apache HTTP Server log file, which is then included by one of these PHP scripts.

Multiple directory traversal vulnerabilities in Open Solution Quick.Cart 2.0, when register_globals is enabled and magic_quotes_gpc is disabled, allow remote attackers to include arbitrary files via a .. (dot dot) in the config[db_type] parameter to (1) actions_admin/other.php and (2) actions_client/gallery.php. NOTE: The provenance of this information is unknown; the details are obtained solely from third party information.

Unspecified vulnerability in OpenSolution Quick.Cart before 2.1 has unknown impact and attack vectors, related to a "low critical exploit."

Directory traversal vulnerability in index.php in Open Solution Quick.Cart 2.2 and earlier allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in an sLanguage cookie, which is used to define a value in config/general.php.

Cross-site scripting (XSS) vulnerability in index.php for Quick.Forum 2.1.6 allows remote attackers to inject arbitrary web script or HTML via the topic field in a NewTopic action.

Multiple SQL injection vulnerabilities in Quick.Forum 2.1.6 allow remote attackers to execute arbitrary SQL commands via the (1) iCategory or (2) page parameter to index.php, or (3) iCategory parameter in the query string to the forum directory.

Quick.Forum 2.1.6 stores potentially sensitive information such as usernames, banned IP addresses, censored words, and backups under the web document root, which allows remote attackers to obtain that information via a direct request to (1) db/users.txt, (2) db/banList.txt, (3) db/censureWords.txt, or (4) backup files.

Cross-site scripting (XSS) vulnerability in index.php for Quick.cart 0.3.0 allows remote attackers to inject arbitrary web script or HTML via the sWord parameter.

SQL injection vulnerability in index.php for Quick.cart 0.3.0 allows remote attackers to execute arbitrary SQL commands via the iCategory parameter. NOTE: the vendor has privately disputed this issue, saying that Quick.cart does not even use SQL and therefore can not be vulnerable to SQL injection