Some HTML elements, such as <title> and <textarea>, 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.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
| Link | Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1562033 | issue tracking permissions required vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-25/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-27/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-26/ | 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/msg00010.html | vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html | vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html | vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html | vendor advisory |
| https://usn.ubuntu.com/4150-1/ | vendor advisory |
| https://security.gentoo.org/glsa/201911-07 | vendor advisory |