If upgrade-insecure-requests was specified in the Content Security Policy, and a link was dragged and dropped from that page, the link was not upgraded to https. This vulnerability affects Firefox < 70.
https://www.mozilla.org/security/advisories/mfsa2019-34/
https://bugzilla.mozilla.org/show_bug.cgi?id=1561056
Source: Mitre, NVD
Published: 2020-01-08
Updated: 2021-07-21
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
Severity: Medium
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N