Joomla! Project vulnerabilities

Joomla! Core - [20260803] - Inconsistent ACL checks for mutating webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper access check allows unauthorized users to perform mutation actions in webservice endpoints, where the same mutation was restricted in the backend UI.

An improper access check allows users to display a list of modules in the frontend.

An improper access check allows unauthorized users to access workflow stage and transition information.

Improper validation leads to a generic XSS vector in the language override feature.

Lack of escaping leads to an XSS vulnerability in the generic image output layout.

Lack of escaping leads to an XSS vulnerability in the update list view of com_installer.

Lack of escaping leads to XSS vulnerabilities in modalreturn layouts of various components.

Lack of escaping leads to an XSS vulnerability in the file management view of com_templates.

Lack of validation leads to an XSS vulnerability in the MFA management views.

An improper access check allows privileged users to overwrite media files without editing permissions.

Lack of input filtering leads to an XSS vector in the HTML filter code.

Inadequate content filtering within the checkAttribute methods leads to XSS vulnerabilities in various components.

An improper access check allowed low privileged users to edit the task types of existing scheduler tasks.