In fenom 2.12.1 and before, there is a way in fenom/src/Fenom/Template.php function getTemplateCode()to bypass sandbox to execute arbitrary PHP code when disablenativefuncs is true.
{ "nvd_published_at": "2022-03-28T11:15:00Z", "cwe_ids": [], "severity": "CRITICAL", "github_reviewed": true, "github_reviewed_at": "2022-03-30T19:57:38Z" }