Veracode Vulnerability DatabaseVERACODE:20796Information Disclosure
EPSS
Percentile
98.0%
firefox is vulnerable to information disclosure. A cross-origin policy vulnerability exists where if a user opens a locally saved HTML file, this file can use file: URIs to access other files in the same directory or sub-directories if the names are known or guessed. The Fetch API can then be used to read the contents of any files stored in these directories and they may uploaded to a server.
References
lists.opensuse.org/opensuse-security-announce/2019-07/msg00055.html
lists.opensuse.org/opensuse-security-announce/2019-07/msg00058.html
lists.opensuse.org/opensuse-security-announce/2019-08/msg00073.html
lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
access.redhat.com/errata/RHSA-2019:1763
access.redhat.com/security/updates/classification/#critical
bugzilla.mozilla.org/show_bug.cgi?id=1558299
lists.debian.org/debian-lts-announce/2019/08/msg00001.html
lists.debian.org/debian-lts-announce/2019/08/msg00002.html
security.gentoo.org/glsa/201908-12
security.gentoo.org/glsa/201908-20
www.mozilla.org/security/advisories/mfsa2019-21/
www.mozilla.org/security/advisories/mfsa2019-22/
www.mozilla.org/security/advisories/mfsa2019-23/
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