Atheos is a self-hosted browser-based cloud integrated development environment. Prior to version 6.0.4, improper use of "escapeshellcmd()" in "/components/codegit/traits/execute.php" allows argument injection, leading to arbitrary command execution. Atheos administrators and users of vulnerable versions are at risk of data breaches or server compromise. Version 6.0.4 introduces a "Common::safe_execute" function that sanitizes all arguments using "escapeshellarg()" prior to execution and migrated all components potentially vulnerable to similar exploits to use this new templated execution system.