5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
6.5 Medium
AI Score
Confidence
Low
0.002 Low
EPSS
Percentile
52.6%
Sites can bypass security checks on permissions to install lightweight themes by manipulating the “baseURI” property of the theme element. This could allow a malicious site to install a theme without user interaction which could contain offensive or embarrassing images. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.
www.securityfocus.com/bid/104136
www.securitytracker.com/id/1040896
access.redhat.com/errata/RHSA-2018:1414
access.redhat.com/errata/RHSA-2018:1415
access.redhat.com/errata/RHSA-2018:1725
access.redhat.com/errata/RHSA-2018:1726
bugzilla.mozilla.org/show_bug.cgi?id=1449548
lists.debian.org/debian-lts-announce/2018/05/msg00007.html
lists.debian.org/debian-lts-announce/2018/05/msg00013.html
security.gentoo.org/glsa/201810-01
security.gentoo.org/glsa/201811-13
usn.ubuntu.com/3645-1/
usn.ubuntu.com/3660-1/
www.debian.org/security/2018/dsa-4199
www.debian.org/security/2018/dsa-4209
www.mozilla.org/security/advisories/mfsa2018-11/
www.mozilla.org/security/advisories/mfsa2018-12/
www.mozilla.org/security/advisories/mfsa2018-13/
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
6.5 Medium
AI Score
Confidence
Low
0.002 Low
EPSS
Percentile
52.6%