ZDNet: Chrome, Firefox CSS3 flaw may have let attackers grab Facebook user data

ZDNet: Chrome, Firefox CSS3 flaw may have let attackers grab Facebook user data. “Chrome and Firefox recently received patches for a bug that allowed attackers to reveal Facebook usernames, profile pictures and Likes when users visited an attack site. The bug is caused by the way Chrome and Firefox implemented a feature of Cascading Style Sheets (CSS) called ‘mix-blend-mode’, introduced to the CSS3 standard in 2016.”

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