[HIGH] Stored XSS vulnerability on Bounce Management Callback

PKSA-dh3n-xcj8-kwbq CVE-2021-27910 GHSA-86pv-95mj-7w5f

Affected package: mautic/core

Affected version: <4.0.0|>=3.3.0,<3.3.4|>=3.2.0,<3.3.0|>=3.1.0,<3.2.0|>=3.0.0,<3.1.0

Reported by:
GitHub, FriendsOfPHP/security-advisories