Dropbox: Send Fax from Anyone's HelloFax Account Due to Misconfigured Email Validation

The report demonstrates a method of using up HelloFax credits by forging email requests. A fix for the issue has been released and it was applied for existing and new users through an automatic update. An attacker could exploit this vulnerability by entering a victim’s HelloFax line number into a...

GSA Bounty: Server Side Misconfiguration (EMAIL SPOOFING)

Hi team, Bug Type: Server Security Misconfiguration Mail Server Misconfiguration Missing SPF on Email Domain Weakness: Improper Authentication Description: i observe this when i send a email from [email protected] through http://emkei.cz/ to email [email protected] and afte...