GHSA-HWQ7-5VV9-C6CF Smarty Cross-site Scripting vulnerability in pages that use smarty_function_mailto

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