Our security researchers found a Reflected File Download on
outlook.office365.com domain which would allow malicious users to
trick innocent victims to download files that would seem to be hosted
on Microsoft domain.
This vulnerability first presented by Oren Hafif in Blackhat Europe
2015 is not very well known but if implemented correctly could be very
This type of vulnerability has been detected in other big companies
like Google, Facebook, Yahoo! and Adobe.
This effort by Char49 was rewarded by Microsoft with a money prize and