In iOS before 11.2, exchange rates were retrieved from HTTP rather than HTTPS. This was addressed by enabling HTTPS for exchange rates.
Source: MITRE
Published: 2019-01-11
Updated: 2019-01-17
Type: CWE-254
Base Score: 4.3
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 5.9
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Impact Score: 3.6
Exploitability Score: 2.2
Severity: MEDIUM