In the 3.1.12 Pro version of Craft CMS, XSS has been discovered in the header insertion field when adding source code at an s/admin/entries/news/new URI.
In some circumstances, Craft 2 before 2.7.10 and 3 before 3.2.6 wasn't stripping EXIF data from user-uploaded images when it was configured to do so, potentially exposing personal/geolocation data to the public.