Firefox Spoofing

The vulnerability of Firefox browsers is related to the incorrect installation of the "LINKABLE" and "URISAFEFORUNTRUSTEDCONTENT" flags, which are used for error pages. Exploiting this vulnerability allows a remote attacker to perform spear-phishing attacks using specially crafted URLs...

CVE-2016-5268

Mozilla Firefox before 48.0 does not properly set the LINKABLE and URISAFEFORUNTRUSTEDCONTENT flags of about: URLs that are used for error pages, which makes it easier for remote attackers to conduct spoofing attacks via a crafted URL, as demonstrated by misleading text after an about:neterror?d=...