In Joomla! before 3.8.0, inadequate escaping in the LDAP authentication plugin can result in a disclosure of a username and password.

SQL injection vulnerability in the RSGallery2 (comrsgallery2) component before 2.3.0 for Joomla! 1.5.x, and before 3.2.0 for Joomla! 2.5.x, allows remote attackers to execute arbitrary SQL commands via unspecified vectors.

Joomla! 1.5.x, 2.x, and 3.x before 3.4.6 allow remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via the HTTP User-Agent header, as exploited in the wild in December 2015.

Multiple SQL injection vulnerabilities in Joomla! 1.5.x before 1.5.22 allow remote attackers to execute arbitrary SQL commands via the (1) filterorder or (2) filterorderDir parameter in a comcontact action to index.php, a different vulnerability than CVE-2010-4166. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

In Joomla! before 3.7.4, inadequate filtering of potentially malicious HTML tags leads to XSS vulnerabilities in various components.

Joomla! before 1.5.23 does not properly check for errors, which allows remote attackers to obtain sensitive information via unspecified vectors.

The password reset functionality in Joomla! 1.5.x through 1.5.24 uses weak random numbers, which makes it easier for remote attackers to change the passwords of arbitrary users via unspecified vectors.

The MediaViewMedia class in administrator/components/commedia/views/media/view.html.php in Joomla! 1.5.23 and earlier allows remote attackers to obtain sensitive information via vectors involving the base variable, leading to disclosure of the installation path, a different vulnerability than CVE-2011-2488.

templates/system/error.php in Joomla! before 1.5.23 might allow remote attackers to obtain sensitive information via unspecified vectors that trigger an undefined value of a certain error field, leading to disclosure of the installation path. NOTE: this might overlap CVE-2011-2488.

Cross-site scripting (XSS) vulnerability in the japurity template for Joomla! 1.5.26 and earlier allows remote attackers to inject arbitrary web script or HTML via the Mod cookie parameter to html/modules.php.

Multiple cross-site scripting (XSS) vulnerabilities in Joomla! before 1.6.4 allow remote attackers to inject arbitrary web script or HTML via (1) the query string to the comcontact component, as demonstrated by the Itemid parameter to index.php; (2) the query string to the comcontent component, as demonstrated by the filterorder parameter to index.php; (3) the query string to the comnewsfeeds component, as demonstrated by an arbitrary parameter to index.php; or (4) the option parameter in a reset.request action to index.php; and, when Internet Explorer or Konqueror is used, (5) allow remote attackers to inject arbitrary web script or HTML via the searchword parameter in a search action to index.php in the comsearch component.

Multiple cross-site scripting (XSS) vulnerabilities in Joomla! before 1.7.0 allow remote attackers to inject arbitrary web script or HTML via (1) the URI to includes/application.php, reachable through index.php; and, when Internet Explorer or Konqueror is used, (2) allow remote attackers to inject arbitrary web script or HTML via the searchword parameter in a search action to index.php in the comsearch component. NOTE: vector 2 exists because of an incomplete fix for CVE-2011-2509.5.