Debian 11: DLA-3956-1 critical advisory for smarty3 XSS vulnerabilities

CVE-2018-25047

In Smarty before 3.1.47 and 4.x before 4.2.1,
libs/plugins/function.mailto.php allows XSS. A web page that uses
smarty_function_mailto, and that could be parameterized using GET or
POST input parameters, could allow injection of JavaScript code by a
user.

CVE-2023-28447

In affected versions smarty did not properly escape javascript code.
An attacker could exploit this vulnerability to execute arbitrary
JavaScript code in the context of the user's browser session. This
may lead to unauthorized access to sensitive user data, manipulation
of the web application's behavior, or unauthorized actions performed
on behalf of the user. Users are advised to upgrade to either
version 3.1.48 or to 4.3.1 to resolve this issue. There are no known
workarounds for this vulnerability.

CVE-2024-35226

In affected versions template authors could inject php code by
choosing a malicious file name for an extends-tag. Sites that cannot