In Moodle before 3.8.2, 3.7.5, 3.6.9 and 3.5.11, X-Forwarded-For headers could be used to spoof a user's IP, in order to bypass remote address checks.
https://moodle.org/mod/forum/discuss.php?d=398351
Source: Mitre, NVD
Published: 2022-08-16
Updated: 2022-08-17
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 5.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS: 0.00304