Bolt CMS <= 4.2 is vulnerable to Remote Code Execution. Unsafe theme rendering allows an authenticated attacker to edit theme to inject server-side template injection that leads to remote code execution.
https://github.com/advisories/GHSA-gprh-7767-cw39
https://github.com/iiSiLvEr/CVEs/tree/main/CVE-2021-40219