Yahoo Fixes Bug That Could Compromise Email Accounts When Opening an Email

  • 19 January 2016
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Infosec researcher pockets $10,000 for his work

 
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Jan 19, 2016 10:08 GMT  ·  By Catalin Cimpanu  Yahoo! has fixed an XSS (cross-site scripting) bug that would have allowed attackers to fully compromise email accounts just by sending a malicious email. To have their account taken over, the victim would have only needed to open and view the email.
 
The researcher who discovered this security bug is Jouko Pynnönen, a Finish infosec professional.
 
According to Pynnönen, an attacker could craft malicious code that would exploit this XSS flaw and use it to "compromise the [victim's] account, change its settings, and forward or send email without the user's consent."
 
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