Description
WebExtension scripts can use the "data:" protocol to affect pages loaded by other web extensions using this protocol, leading to potential data disclosure or privilege escalation in affected extensions. This vulnerability affects Firefox ESR < 45.7 and Firefox < 51.
References (8)
Core 8
Core References
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-02/
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201702-22
Exploit, Issue Tracking, Patch, Vendor Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1319070
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2017/dsa-3771
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1037693
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-01/
Third Party Advisory vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2017-0190.html
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/95769
Scores
CVSS v3
7.3
EPSS
0.0118
EPSS Percentile
79.0%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Details
Status
published
Products (19)
debian/debian_linux
8.0
mozilla/firefox
< 51.0
redhat/enterprise_linux
5.0
redhat/enterprise_linux
6.0
redhat/enterprise_linux
7.0
redhat/enterprise_linux_desktop
5.0
redhat/enterprise_linux_desktop
6.0
redhat/enterprise_linux_desktop
7.0
redhat/enterprise_linux_server
5.0
redhat/enterprise_linux_server
6.0
... and 9 more
Published
Jun 11, 2018
Tracked Since
Feb 18, 2026