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Fencer Vulns
medium 4.3

CVE-2018-18511 json

Cross-origin images can be read from a canvas element in violation of the same-origin policy using the transferFromImageBitmap method.

published 2019-04-26 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10236

cvss
4.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

Cross-origin images can be read from a canvas element in violation of the same-origin policy using the transferFromImageBitmap method. *Note: This only affects Firefox 65. Previous versions are unaffected.*. This vulnerability affects Firefox < 65.0.1.

Patch / fix

  • Mozilla Firefox 65.0.1
  • firefox-esr Debian 14, Debian 13, Debian 12 60.7.0esr-1
  • thunderbird Debian 14, Debian 13, Debian 12 1:60.7.0-1

debian advisories DEBIAN-CVE-2018-18511

  • firefox Ubuntu 14.04 LTS 65.0.1+build2-0ubuntu0.14.04.1
  • firefox Ubuntu 16.04 LTS 65.0.1+build2-0ubuntu0.16.04.1
  • firefox Ubuntu 18.04 LTS 65.0.1+build2-0ubuntu0.18.04.1
  • thunderbird Ubuntu 16.04 LTS 1:60.7.0+build1-0ubuntu0.16.04.1
  • thunderbird Ubuntu 18.04 LTS 1:60.7.0+build1-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2018-18511

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • thunderbird RHEL 6 60.7.0-1.el6_10
  • thunderbird RHEL 7 60.7.0-1.el7_6
  • thunderbird RHEL 8 60.7.0-1.el8_0
  • firefox RHEL 6 60.7.0-1.el6_10
  • firefox RHEL 7 60.7.0-1.el7_6
  • firefox RHEL 8 60.7.0-1.el8_0

red hat advisories RHSA-2019:1310RHSA-2019:1309RHSA-2019:1308RHSA-2019:1267RHSA-2019:1265RHSA-2019:1269

  • MozillaThunderbird SLE Workstation Extension 15 SP1, SLE Workstation Extension 15 60.7.0-3.33.2

suse advisories SUSE-SU-2019:1458-1

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 92.0-1.2
  • MozillaThunderbird openSUSE Tumbleweed 91.1.1-1.1
  • MozillaThunderbird Package Hub 12 60.7.2-85.1
  • MozillaFirefox openSUSE Leap 15.0 60.7.0-lp150.3.54.5

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10600-1openSUSE-SU-2024:10601-1openSUSE-SU-2019:1664-1openSUSE-SU-2019:1534-1

  • firefox-esr Alpine 3.23, Alpine 3.22, Alpine 3.21 +12 more 60.7.0-r0

alpine advisories ALPINE-CVE-2018-18511

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • firefox Arch Linux 65.0.1-1

arch linux advisories AVG-896

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-2018-18511 updated cvss 4.3

mozilla: Cross-origin theft of images with ImageBitmapRenderingContext

  • Red Hat Enterprise Linux AppStream (v. 8) firefox 60.7.0-1.el8_0, thunderbird 60.7.0-1.el8_0
    fixed: vendor fix RHSA-2019:1269
  • Red Hat Enterprise Linux Client (v. 7) firefox 60.7.0-1.el7_6, thunderbird 60.7.0-1.el7_6 Red Hat Enterprise Linux Client Optional (v. 7) firefox 60.7.0-1.el7_6
    fixed: vendor fix RHSA-2019:1265
  • Red Hat Enterprise Linux Desktop (v. 6) firefox 60.7.0-1.el6_10, thunderbird 60.7.0-1.el6_10 Red Hat Enterprise Linux Desktop Optional (v. 6) firefox 60.7.0-1.el6_10
    fixed: vendor fix RHSA-2019:1267
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) firefox 60.7.0-1.el7_6
    fixed: vendor fix RHSA-2019:1265
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) thunderbird 60.7.0-1.el7_6
    fixed: vendor fix RHSA-2019:1309
  • Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox 60.7.0-1.el6_10 Red Hat Enterprise Linux Server (v. 6) firefox 60.7.0-1.el6_10
    fixed: vendor fix RHSA-2019:1267
  • Red Hat Enterprise Linux Server (v. 7) firefox 60.7.0-1.el7_6
    fixed: vendor fix RHSA-2019:1265
  • Red Hat Enterprise Linux Server Optional (v. 6) firefox 60.7.0-1.el6_10, thunderbird 60.7.0-1.el6_10
    fixed: vendor fix RHSA-2019:1267
show 5 more
  • Red Hat Enterprise Linux Server Optional (v. 7) firefox 60.7.0-1.el7_6, thunderbird 60.7.0-1.el7_6
    fixed: vendor fix RHSA-2019:1265
  • Red Hat Enterprise Linux Workstation (v. 6) firefox 60.7.0-1.el6_10, thunderbird 60.7.0-1.el6_10
    fixed: vendor fix RHSA-2019:1267
  • Red Hat Enterprise Linux Workstation (v. 7) firefox 60.7.0-1.el7_6, thunderbird 60.7.0-1.el7_6
    fixed: vendor fix RHSA-2019:1265
  • Red Hat Enterprise Linux Workstation Optional (v. 6) firefox 60.7.0-1.el6_10
    fixed: vendor fix RHSA-2019:1267
  • Red Hat Enterprise Linux Workstation Optional (v. 7) firefox 60.7.0-1.el7_6
    fixed: vendor fix RHSA-2019:1265

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

1.62% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 4.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • Mozilla Firefox

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

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.