Forcing viewers to view web content

Exploit Author: Amit Sangra
CVE : CVE-2017-7783

Mozilla Firefox < 55 - Denial of Service
If a long user name is used in a username/password combination in a site URL (such as, the resulting modal prompt will hang in a non-responsive state or crash, causing a denial of service.

# Impact:
An attacker can create a webpage having some content and exploit.
Now once a victim visits this webpage, his browser gets locked out and he is forcibly made to view attacker supplied content.

# Exploit:

# Solution:
Update to version 55

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