A XUL injection has been found in Firefox < 55.0, in the style editor in devtools. The Developer Tools feature suffers from a XUL injection vulnerability due to improper sanitization of the web page source code. In the worst case, this could allow arbitrary code execution when opening a malicious page with the style editor tool.
A XUL injection has been found in Firefox < 55.0, in the style editor in devtools. The Developer Tools feature suffers from a XUL injection vulnerability due to improper sanitization of the web page source code. In the worst case, this could allow arbitrary code execution when opening a malicious page with the style editor tool.
https://www.mozilla.org/en-US/security/advisories/mfsa2017-18/#CVE-2017-7798 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1371586%2C1372112