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.

Fenrir Sleipnir 2.9.6 and earlier does not prevent interaction between web script and the clipboard, which allows remote attackers to read or modify the clipboard contents via a crafted web site.

The Sleipnir Mobile application before 2.1.0 and Sleipnir Mobile Black Edition application before 2.1.0 for Android do not properly implement the WebView class, which allows remote attackers to obtain sensitive information via a crafted application.

The Sleipnir Mobile application 2.2.0 and earlier and Sleipnir Mobile Black Edition application 2.2.0 and earlier for Android allow remote attackers to execute arbitrary Java methods, and obtain sensitive information or execute arbitrary commands, via a crafted web site.

Cross-site scripting (XSS) vulnerability in the Sleipnir Mobile application 2.2.0 and earlier and Sleipnir Mobile Black Edition application 2.2.0 and earlier for Android allows remote attackers to inject arbitrary web script or HTML via a crafted application that interacts with an unspecified Sleipnir Mobile function.

Multiple unspecified vulnerabilities in Fenrir Inc. ActiveGeckoBrowser 1.0.0 and 1.0.5 alpha, a module for the Sleipnir web browser, allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unknown vectors related to the Gecko engine.

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.

The Sleipnir Mobile application 2.12.1 and earlier and Sleipnir Mobile Black Edition application 2.12.1 and earlier for Android provide Geolocation API data without verifying user consent, which allows remote attackers to obtain sensitive location information via a web site that makes API calls.

Sleipnir 4.0.0.4000 and earlier on Windows allows remote attackers to spoof the SSL lock icon and address-bar colors via unspecified vectors.