Secunia Security Advisory – Some security issues have been reported in Maarch LetterBox, which can be exploited by malicious users to bypass certain security restrictions and disclose potentially sensitive information.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/78828/sa35562.txt
Source: https://packetstormsecurity.com/files/78828/Secunia-Security-Advisory-35562.html