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.
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-40219
- https://github.com/bolt/core
- https://github.com/bolt/core/blob/3b21a73ebf519b76756d3ad2841312d10ef11461/src/Controller/Frontend/TemplateController.php
- https://github.com/iiSiLvEr/CVEs/tree/main/CVE-2021-40219
- http://boltcms.com
- https://github.com/advisories/GHSA-gprh-7767-cw39