Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, bypass iframe sandbox restrictions, confuse the user, or execute arbitrary code. (CVE-2020-6463, CVE-2020-6514, CVE-2020-15652, CVE-2020-15653, CVE-2020-15654, CVE-2020-15656, CVE-2020-15658, CVE-2020-15659) It was discovered that redirected HTTP requests which are observed or modified through a web extension could bypass existing CORS checks. If a user were tricked in to installing a specially crafted extension, an attacker could potentially exploit this to obtain sensitive information across origins. (CVE-2020-15655)
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