An issue in tiagorlampert CHAOS before 1b451cf62582295b7225caf5a7b506f0bad56f6b and 24c9e109b5be34df7b2bce8368eae669c481ed5e allows a remote attacker to execute arbitrary code via the unsafe concatenation of the `filename` argument into the `buildStr` string without any sanitization or filtering.
https://github.com/tiagorlampert/CHAOS/pull/95
https://gist.github.com/slimwang/d1ec6645ba9012a551ea436679244496