CVE-2019-11718

Name: CVE-2019-11718
Creator: NVD / NIST
Published: 2019-07-23T14:15:15.997+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.23%

Last modified Jun 17, 2026

CVE-2019-11718 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Activity Stream can display content from sent from the Snippet Service website. This content is written to innerHTML on the Activity Stream page without sanitization, allowing for a potential access to other information available to the Activity Stream, such as browsing history, if the Snipper Service were compromised. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

Description

Activity Stream can display content from sent from the Snippet Service website. This content is written to innerHTML on the Activity Stream page without sanitization, allowing for a potential access to other information available to the Activity Stream, such as browsing history, if the Snipper Service were compromised. This vulnerability affects Firefox < 68.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

1.23%

65.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-74

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 68.0
Opensuse	Leap	15.0
Opensuse	Leap	15.1

References

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.htmlMailing List, Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1408349Issue Tracking, Permissions Required, Vendor Advisory
https://security.gentoo.org/glsa/201908-12Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2019-21/Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.htmlMailing List, Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1408349Issue Tracking, Permissions Required, Vendor Advisory
https://security.gentoo.org/glsa/201908-12Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2019-21/Vendor Advisory

Timeline

Published: Jul 23, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-11718?

How severe is CVE-2019-11718?

CVE-2019-11718 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.

How do I fix CVE-2019-11718?

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-2019-11718?

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

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Source: NVD / NIST