HIGH7.8
gui2/viewer/bookmarkmanager.py in Calibre 3.18 calls cPickle.load on imported bookmark data, which allows remote attackers to execute arbitrary code via a crafted .pickle file, as demonstrated by Python code that contains an os.system call.
CVSS 2.0MEDIUM 6.8
CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:PCVSS 3.xHIGH 7.8
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H