In Joomla! before 3.8.4, lack of escaping in the module chromes leads to XSS vulnerabilities in the module system.

In Joomla! before 3.8.4, inadequate input filtering in the Uri class (formerly JUri) leads to an XSS vulnerability.

In Joomla! before 3.8.4, inadequate input filtering in com_fields leads to an XSS vulnerability in multiple field types, i.e., list, radio, and checkbox

In Joomla! before 3.8.4, the lack of type casting of a variable in a SQL statement leads to a SQL injection vulnerability in the Hathor postinstall message.

In Joomla! before 3.8.2, a bug allowed third parties to bypass a user's 2-factor authentication method.

In Joomla! before 3.8.2, a logic bug in com_fields exposed read-only information about a site's custom fields to unauthorized users.

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

In Joomla! before 3.8.0, a logic bug in a SQL query could lead to the disclosure of article intro texts when these articles are in the archived state.

The CMS installer in Joomla! before 3.7.4 does not verify a user's ownership of a webspace, which allows remote authenticated users to gain control of the target application by leveraging Certificate Transparency logs.

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

Missing CSRF token checks and improper input validation in Joomla! CMS 1.7.3 through 3.7.2 lead to an XSS vulnerability.

Improper cache invalidation in Joomla! CMS 1.7.3 through 3.7.2 leads to disclosure of form contents.

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.

Multiple cross-site scripting (XSS) vulnerabilities in the StackIdeas Komento (com_komento) component before 1.7.3 for Joomla! allow remote attackers to inject arbitrary web script or HTML via the (1) website or (2) latitude parameter in a comment to the default URI.

SQL injection vulnerability in the JV Comment (com_jvcomment) component before 3.0.3 for Joomla! allows remote authenticated users to execute arbitrary SQL commands via the id parameter in a comment.like action to index.php.

Cross-site scripting (XSS) vulnerability in the aiContactSafe component before 2.0.21 for Joomla! allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Cross-site scripting (XSS) vulnerability in the aiContactSafe component before 2.0.21 for Joomla! allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.