administrator/index.php in the installer component (com_installer) in Joomla! 1.5 Beta1, Beta2, and RC1 allows remote authenticated administrators to upload arbitrary files to tmp/ via the "Upload Package File" functionality, which is accessible when com_installer is the value of the option parameter.

Multiple eval injection vulnerabilities in the com_search component in Joomla! 1.5 beta before RC1 (aka Mapya) allow remote attackers to execute arbitrary PHP code via PHP sequences in the searchword parameter, related to default_results.php in (1) components/com_search/views/search/tmpl/ and (2) templates/beez/html/com_search/search/.

SQL injection vulnerability in (1) Joomla! 1.0.11 and 1.5 Beta, and (2) Mambo 4.6.1, allows remote attackers to execute arbitrary SQL commands via the id parameter when cancelling content editing.

Joomla! 1.5.0 Beta allows remote attackers to obtain sensitive information via a direct request for (1) plugins/user/example.php; (2) gmail.php, (3) example.php, or (4) ldap.php in plugins/authentication/; (5) modules/mod_mainmenu/menu.php; or other unspecified PHP scripts, which reveals the path in various error messages, related to a jimport function call at the beginning of each script.

Multiple SQL injection vulnerabilities in Joomla! 1.5.0 Beta allow remote attackers to execute arbitrary SQL commands via (1) the searchword parameter in certain files; the where parameter in (2) plugins/search/content.php or (3) plugins/search/weblinks.php; the text parameter in (4) plugins/search/contacts.php, (5) plugins/search/categories.php, or (6) plugins/search/sections.php; or (7) the email parameter in database/table/user.php, which is not properly handled by the check function.