In Firefox before 68.0, some unicode characters are incorrectly treated as whitespace during the parsing of web content instead of triggering parsing errors. This allows malicious code to then be processed, evading cross-site scripting (XSS) filtering.
In Firefox before 68.0, some unicode characters are incorrectly treated as whitespace during the parsing of web content instead of triggering parsing errors. This allows malicious code to then be processed, evading cross-site scripting (XSS) filtering.
https://www.mozilla.org/en-US/security/advisories/mfsa2019-21/#CVE-2019-11720 https://bugzilla.mozilla.org/show_bug.cgi?id=1556230
Vulmon