Multiple SQL injection vulnerabilities in PHP JackKnife (PHPJK) allow remote attackers to execute arbitrary SQL commands via (1) the iCategoryUnq parameter to G_Display.php or (2) the iSearchID parameter to Search/DisplayResults.php.

Multiple cross-site scripting (XSS) vulnerabilities in PHP JackKnife (PHPJK) allow remote attackers to inject arbitrary web script or HTML via (1) the sUName parameter to UserArea/Authenticate.php, (2) the sAccountUnq parameter to UserArea/NewAccounts/index.php, or the (3) iCategoryUnq, (4) iDBLoc, (5) iTtlNumItems, (6) iNumPerPage, or (7) sSort parameter to G_Display.php, different vectors than CVE-2005-4239.

PHP JackKnife (PHPJK) allows remote attackers to obtain sensitive information via (1) a request to index.php with an invalid value of the iParentUnq[] parameter, or a request to G_Display.php with an invalid (2) iCategoryUnq[] or (3) sSort[] array parameter, which reveals the path in various error messages.

Cross-site scripting (XSS) vulnerability in Search/DisplayResults.php in PHP JackKnife 2.21 and earlier allows remote attackers to inject arbitrary web script or HTML via URL-encoded values in the sKeywords parameter.