Description
Some HTML elements, such as &lt;title&gt; and &lt;textarea&gt;, can contain literal angle brackets without treating them as markup. It is possible to pass a literal closing tag to .innerHTML on these elements, and subsequent content after that will be parsed as if it were outside the tag. This can lead to XSS if a site does not filter user input as strictly for these elements as it does for other elements. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.
Published: 2019-09-27
Score: 6.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-1910-1 firefox-esr security update
Debian DLA Debian DLA DLA-1926-1 thunderbird security update
Debian DSA Debian DSA DSA-4516-1 firefox-esr security update
Debian DSA Debian DSA DSA-4523-1 thunderbird security update
EUVD EUVD EUVD-2019-3414 Some HTML elements, such as &lt;title&gt; and &lt;textarea&gt;, can contain literal angle brackets without treating them as markup. It is possible to pass a literal closing tag to .innerHTML on these elements, and subsequent content after that will be parsed as if it were outside the tag. This can lead to XSS if a site does not filter user input as strictly for these elements as it does for other elements. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.
Ubuntu USN Ubuntu USN USN-4122-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-4150-1 Thunderbird vulnerabilities
History

Tue, 25 Nov 2025 18:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Vendors & Products Mozilla firefox Esr

Subscriptions

Mozilla Firefox Thunderbird
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-04T23:03:32.580Z

Reserved: 2019-05-03T00:00:00.000Z

Link: CVE-2019-11744

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-09-27T18:15:12.130

Modified: 2025-11-25T17:50:16.803

Link: CVE-2019-11744

cve-icon Redhat

Severity : Important

Publid Date: 2019-09-03T00:00:00Z

Links: CVE-2019-11744 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses