[smarty/smarty] 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 smarty_function_mailto, and that could be parameterized using GET or POST input parameters, could allow injection of JavaScript code by a user.

References

• https://nvd.nist.gov/vuln/detail/CVE-2018-25047
• https://github.com/smarty-php/smarty/issues/454
• https://bugs.gentoo.org/870100
• https://github.com/smarty-php/smarty/releases/tag/v3.1.47
• https://github.com/smarty-php/smarty/releases/tag/v4.2.1
• https://github.com/smarty-php/smarty/commit/55ea25d1f50f0406fb1ccedd212c527977793fc9
• https://github.com/advisories/GHSA-hwq7-5vv9-c6cf