CVE-2021-23259

Authenticated users with Administrator or Developer roles may execute OS commands by Groovy Script which uses Groovy lib to render a webpage. The groovy script does not have security restrictions, which will cause attackers to execute arbitrary commands remotely(RCE).

• https://docs.craftercms.org/en/3.1/security/advisory.html#cv-2021120102
  Vendor Advisory
• https://docs.craftercms.org/en/3.1/security/advisory.html#cv-2021120102
  Vendor Advisory