In Mustache.php v2.0.0 through v2.14.0, Sections tag can lead to arbitrary php code execution even if strict_callables is true when section value is controllable.
github.com/bobthecow/mustache.php
github.com/bobthecow/mustache.php/commit/579ffa5c96e1d292c060b3dd62811ff01ad8c24e
github.com/bobthecow/mustache.php/releases/tag/v2.14.1
github.com/FriendsOfPHP/security-advisories/blob/master/mustache/mustache/CVE-2022-0323.yaml
huntr.dev/bounties/a5f5a988-aa52-4443-839d-299a63f44fb7
nvd.nist.gov/vuln/detail/CVE-2022-0323