The Sleipnir Mobile application 2.8.0 and earlier and Sleipnir Mobile Black Edition application 2.8.0 and earlier for Android allow remote attackers to load arbitrary Extension APIs, and trigger downloads or obtain sensitive HTTP response-body information, via a crafted web page.
The Sleipnir Mobile application 2.9.1 and earlier and Sleipnir Mobile Black Edition application 2.9.1 and earlier for Android allow remote attackers to spoof the address bar via vectors involving the opening of a new window.
Sleipnir 4 Black Edition for Mac 4.5.3 and earlier and Sleipnir 4 for Mac 4.5.3 and earlier (Mac App Store) may allow a remote attacker to spoof the URL display via a specially crafted webpage.