CVE-2018-18494

moderate-risk
Published 2019-02-28

A same-origin policy violation allowing the theft of cross-origin URL entries when using the Javascript location property to cause a redirection to another site using performance.getEntries(). This is a same-origin policy violation and could allow for data theft. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.

Do I need to act?

~
1.1% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
NETWORK / LOW complexity

Affected Products (17)

Affected Vendors

Debian Redhat Mozilla Canonical

References (30)

Third Party Advisory http://www.securityfocus.com/bid/106168
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3831
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3833
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0159
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0160
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1487964
Third Party Advisory https://lists.debian.org/debian-lts-announce/2018/12/msg00002.html
Third Party Advisory https://security.gentoo.org/glsa/201903-04
Third Party Advisory https://usn.ubuntu.com/3844-1/
Third Party Advisory https://usn.ubuntu.com/3868-1/
Third Party Advisory https://www.debian.org/security/2018/dsa-4354
Third Party Advisory https://www.debian.org/security/2019/dsa-4362
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-29/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-30/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-31/
Third Party Advisory http://www.securityfocus.com/bid/106168
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3831
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3833
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0159
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0160
and 10 more references
46
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 3/34 · Minimal
Exposure 19/34 · Moderate