OroCalendarBundle enables a Calendar feature and related functionality in Oro applications. Back-office users can access information from any call event, bypassing ACL security restrictions due to insufficient security checks. This issue has been patched in version 5.0.4 and 5.1.1.
https://github.com/oroinc/crm/security/advisories/GHSA-897w-jv7j-6r7g
https://github.com/oroinc/OroCRMCallBundle/commit/9a41dff459bb4aff864175ca883d553ac0954950
https://github.com/oroinc/OroCRMCallBundle/commit/456b1dda7762abf4ff59eafffaa70ab7f09d1c85