Skip to content
Fencer Vulns
medium 5.3

CVE-2018-12381 json

Manually dragging and dropping an Outlook email message into the browser will trigger a page navigation when the message's mail columns are…

published 2018-10-18 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-4355

cvss
5.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

Manually dragging and dropping an Outlook email message into the browser will trigger a page navigation when the message's mail columns are incorrectly interpreted as a URL. *Note: this issue only affects Windows operating systems with Outlook installed. Other operating systems are not affected.*. This vulnerability affects Firefox ESR < 60.2 and Firefox < 62.

Patch / fix

  • Mozilla Firefox ESR 60.2
  • Mozilla Firefox 62
  • apache2-mod_nss SLES 12 SP4, SLES 12 SP3, OpenStack Cloud 7 +7 more 1.0.14-19.6.3
  • mozilla-nss SLES 12 SP4, SLES 12 SP3, SLED 12 SP4 +12 more 3.36.4-58.15.3
  • mozilla-nspr SLES 12 SP4, SLES 12 SP3, SLED 12 SP4 +12 more 4.19-19.3.1
  • MozillaFirefox SLES 12 SP4, SLES 12 SP3, SLED 12 SP4 +12 more 60.2.2esr-109.46.1
  • MozillaFirefox-branding-SLE SLES 12 SP4, SLES 12 SP3, SLED 12 SP4 +10 more 60-32.3.1
  • MozillaFirefox SLE Module for Desktop Applications 15 60.2.0-3.10.1
  • MozillaFirefox-branding-SLE SLE Module for Desktop Applications 15 60-4.3.1

suse advisories SUSE-SU-2018:3591-2SUSE-SU-2018:3591-1SUSE-SU-2018:2890-1

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 92.0-1.2

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10600-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-12381 updated cvss 4.4

Mozilla: Dragging and dropping Outlook email message results in page navigation

  • Red Hat Enterprise Linux 6 firefox, thunderbird Red Hat Enterprise Linux 7 firefox, thunderbird
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.84% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected products

  • Mozilla Firefox ESR
  • Mozilla Firefox

Classification

Weakness
  • CWE-610 Externally Controlled Reference to a Resource in Another Sphere

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.