An issue was discovered in Joomla! 2.5.0 through 3.9.22. The folder parameter of mod_random_image lacked input validation, leading to a path traversal vulnerability.
An issue was discovered in Joomla! 3.0.0 through 3.9.22. Improper filter blacklist configuration leads to a SQL injection vulnerability in the backend user list.
An issue was discovered in Joomla! 3.9.0 through 3.9.22. Improper handling of the username leads to a user enumeration attack vector in the backend login page.
SQL injection vulnerability in the EQ Event Calendar component for Joomla! allows remote attackers to execute arbitrary SQL commands via the id parameter to eqfullevent.
Cross-site scripting (XSS) vulnerability in manage.php in the PBBooking (com_pbbooking) component 2.4 for Joomla! allows remote attackers to inject arbitrary web script or HTML via the an arbitrary parameter in an edit action to administrator/index.php.
Multiple cross-site scripting (XSS) vulnerabilities in tmpl/layout_editevent.php in the Multi Calendar (com_multicalendar) component 4.0.2, and possibly 4.8.5 and earlier, for Joomla! allow remote attackers to inject arbitrary web script or HTML via the (1) calid or (2) paletteDefault parameter in an editevent action to index.php.
Multiple cross-site scripting (XSS) vulnerabilities in the Freichat (com_freichat) component, possibly 9.4 and earlier, for Joomla! allow remote attackers to inject arbitrary web script or HTML via the (1) id or (2) xhash parameter to client/chat.php or (3) toname parameter to client/plugins/upload/upload.php.