NetSight
medium6.1

CVE-2019-11744

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

Impact

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.

Affected products

VendorProductAffected versions
MozillaFirefox
before 60.9
before 69.0
from 68.0 before 68.1
MozillaThunderbird
before 60.9
from 68.0 before 68.1

Weakness classification

References