Fenrir-inc » Sleipnir : Security Vulnerabilities, CVEs,

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.

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.

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.