The set_meta_data function in lib/cremefraiche.rb in the Creme Fraiche gem before 0.6.1 for Ruby allows remote attackers to execute arbitrary commands via shell metacharacters in the file name of an email attachment. NOTE: some of these details are obtained from third party information.
%7Cutmcsr%3D(direct)%7Cutmcmd%3D(none)){kind=small}
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