Reverse Tabnabbing

hfs is vulnerable to reverse tabnabbing. The vulnerability is due to missing rel="noopener noreferrer" when opening web links with target="blank", which allows an attacker to manipulate the original HFS tab via the window.opener property...

HFS user adding a "web link" in HFS is vulnerable to "target=_blank" exploit

Summary When adding a "web link" to the HFS virtual filesystem, the frontend opens it with target="blank" but without the rel="noopener noreferrer" attribute. This allows the opened page to use the window.opener property to change the location of the original HFS tab. Details While most modern...