The following vulnerabilities have been discovered in the webkit2gtk web engine: CVE-2020-3862 Srikanth Gatta discovered that a malicious website may be able to cause a denial of service. CVE-2020-3864 Ryan Pickren discovered that a DOM object context may not have had a unique security origin. CVE-2020-3865 Ryan Pickren discovered that a top-level DOM object context may have incorrectly been considered secure. CVE-2020-3867 An anonymous researcher discovered that processing maliciously crafted web content may lead to universal cross site scripting. CVE-2020-3868 Marcin Towalski discovered that processing maliciously crafted web content may lead to arbitrary code execution.