The wrapper extensions do not correctly validate inputs, leading to XSS vectors.

The Custom Fields component not correctly filter inputs, leading to a XSS vector.

Improper handling of input could lead to an XSS vector in the StringHelper::truncate method.

Inadequate content filtering leads to XSS vulnerabilities in various components.

Inadequate input validation for media selection fields lead to XSS vulnerabilities in various extensions.

Inadequate parsing of URLs could result into an open redirect.

The MFA management features did not properly terminate existing user sessions when a user's MFA methods have been modified.

The language file parsing process could be manipulated to expose environment variables. Environment variables might contain sensible information.

An issue was discovered in Joomla! 2.5.0 through 3.10.6 & 4.0.0 through 4.1.0. Inadequate validation of URLs could result into an invalid check whether an redirect URL is internal or not.

An issue was discovered in Joomla! 3.0.0 through 3.10.6 & 4.0.0 through 4.1.0. Inadequate filtering on the selected Ids on an request could resulted into an possible SQL injection.

An issue was discovered in Joomla! 3.7.0 through 3.10.6. Lack of input validation could allow an XSS attack using com_fields.

An issue was discovered in Joomla! 2.5.0 through 3.10.6 & 4.0.0 through 4.1.0. A user row was not bound to a specific authentication mechanism which could under very special circumstances allow an account takeover.

An issue was discovered in Joomla! 3.0.0 through 3.10.6 & 4.0.0 through 4.1.0. Uploading a file name of an excess length causes the error. This error brings up the screen with the path of the source code of the web application.

An issue was discovered in Joomla! 3.0.0 through 3.10.6 & 4.0.0 through 4.1.0. Extracting an specifilcy crafted tar package could write files outside of the intended path.

An issue was discovered in Joomla! 3.0.0 through 3.9.27. Inadequate escaping in the imagelist view of com_media leads to a XSS vulnerability.

An issue was discovered in Joomla! 2.5.0 through 3.9.27. Install action in com_installer lack the required hardcoded ACL checks for superusers. A default system is not affected cause the default ACL for com_installer is limited to super users already.

An issue was discovered in Joomla! 2.5.0 through 3.9.27. CMS functions did not properly termine existing user sessions when a user's password was changed or the user was blocked.

An issue was discovered in Joomla! 2.5.0 through 3.9.27. Missing validation of input could lead to a broken usergroups table.

An issue was discovered in Joomla! 3.0.0 through 3.9.27. Inadequate escaping in the rules field of the JForm API leads to a XSS vulnerability.

An issue was discovered in Joomla! 3.0.0 through 3.9.26. A missing token check causes a CSRF vulnerability in data download endpoints in com_banners and com_sysinfo.