Some HTML elements, such as <title> and <textarea>, can contain literal angle brackets without treating them as markup. It is…

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.

Scores

EPSS (exploitation in 30 days)

1.5% · top 27% of all CVEs (6 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.

Weakness

• XSS by breaking out of title and textarea elements using innerHTML
• CWE-79 (opens in a new tab)All about CWE-79 and its CVEs

Affected products

• Mozilla · Firefox

  • affected unspecified – < 69

• Mozilla · Thunderbird

  • affected unspecified – < 68.1
  • affected unspecified – < 60.9

• Mozilla · Firefox ESR

  • affected unspecified – < 60.9
  • affected unspecified – < 68.1

References (12)

• https://bugzilla.mozilla.org/show_bug.cgi?id=1562033 (opens in a new tab)x_refsource_MISCx_transferred
• https://www.mozilla.org/security/advisories/mfsa2019-25/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://www.mozilla.org/security/advisories/mfsa2019-27/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://www.mozilla.org/security/advisories/mfsa2019-26/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://www.mozilla.org/security/advisories/mfsa2019-29/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://www.mozilla.org/security/advisories/mfsa2019-30/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• openSUSE-SU-2019:2248 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• openSUSE-SU-2019:2249 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• openSUSE-SU-2019:2251 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• openSUSE-SU-2019:2260 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• USN-4150-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• GLSA-201911-07 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2019-11744](https://trackcve.app/badge/CVE-2019-11744.svg)](https://trackcve.app/cve/CVE-2019-11744)

Record last updated 4 Aug 2024, 23:03 UTC.