New cutting-edge Photoshop-like CSS feature has a negative impact on user privacy, revealing browsing history
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Aug 5, 2016 16:15 GMT · By Catalin Cimpanu A new CSS feature added in Chrome, Firefox, Opera, and Safari can reveal the links a user has visited in the past if they're stored in their browser's history.
The problem of CSS leaking user history was discussed before, more precisely around the turn of the decade. Security researchers realized that they could use the getComputedStyle API function present in all browsers to detect how the user's browser colors a link inside a page, if the site used "a:visited" CSS selectors to visibly mark previously visited URLs.
Browser makers have somewhat addressed this issue by making the attack more costly to carry out, with users required to click on each link.
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