MajorDoMo (aka Major Domestic Module) before 0662e5e allows command execution via thumb.php shell metacharacters. NOTE: this is unrelated to the Majordomo mailing-list manager.
View the template here CVE-2023-50917.yaml
References:
https://github.com/sergejey/majordomo/commit/3ec3ffb863ea3c2661ab27d398776c551f4daaac