Tor Browser through 8.5.3 has an information exposure vulnerability. It allows remote attackers to detect the browser's language via vectors involving an IFRAME element, because text in that language is included in the title attribute of a LINK element for a non-HTML page. This is related to a behavior of Firefox before 68.
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Link | Tags |
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https://trac.torproject.org/projects/tor/ticket/30657 | vendor advisory |
https://hackerone.com/reports/588239 | issue tracking exploit third party advisory |