CVE-2019-11742

Name: CVE-2019-11742
Creator: NVD / NIST
Published: 2019-09-27T18:15:11.943+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.69%

Last modified Jun 17, 2026

CVE-2019-11742 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A same-origin policy violation occurs allowing the theft of cross-origin images through a combination of SVG filters and a <canvas> element due to an error in how same-origin policy is applied to cached image content. The resulting same-origin policy violation could allow for data theft. EPSS estimates a 1.69% chance of exploitation in the next 30 days.

Description

A same-origin policy violation occurs allowing the theft of cross-origin images through a combination of SVG filters and a <canvas> element due to an error in how same-origin policy is applied to cached image content. The resulting same-origin policy violation could allow for data theft. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS Probability

1.69%

74.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-829

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 60.9.0
Mozilla	Firefox	< 69.0
Mozilla	Firefox Esr	>= 68.0, < 68.1.0
Mozilla	Thunderbird	< 60.9.0
Mozilla	Thunderbird	>= 68.0, < 68.1.0

References

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html
https://bugzilla.mozilla.org/show_bug.cgi?id=1559715Issue Tracking, Permissions Required, Vendor Advisory
https://security.gentoo.org/glsa/201911-07
https://usn.ubuntu.com/4150-1/
https://www.mozilla.org/security/advisories/mfsa2019-25/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-26/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-27/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-29/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-30/Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html
https://bugzilla.mozilla.org/show_bug.cgi?id=1559715Issue Tracking, Permissions Required, Vendor Advisory
https://security.gentoo.org/glsa/201911-07
https://usn.ubuntu.com/4150-1/
https://www.mozilla.org/security/advisories/mfsa2019-25/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-26/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-27/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-29/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-30/Vendor Advisory

Timeline

Published: Sep 27, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-11742?

How severe is CVE-2019-11742?

CVE-2019-11742 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.69% probability of exploitation in the next 30 days.

How do I fix CVE-2019-11742?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-11742?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST