A reply to a forwarded email article by a 3rd party could unintensionally expose the email content to the ticket customer under certain circumstances.
https://otrs.com/release-notes/otrs-security-advisory-2022-08/
Source: Mitre, NVD
Published: 2022-06-13
Updated: 2022-06-22
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 5.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.00268