If an image had not loaded correctly (such as when it is not actually an image), it could be dragged and dropped cross-domain, resulting in a cross-origin information leak. This vulnerability affects Firefox < 71.
https://www.mozilla.org/security/advisories/mfsa2019-36/
https://bugzilla.mozilla.org/show_bug.cgi?id=1322864
Source: Mitre, NVD
Published: 2020-01-08
Updated: 2021-07-21
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 7.4
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Severity: High