CVE-2019-17022

Description

When pasting a <style> tag from the clipboard into a rich text editor, the CSS sanitizer does not escape < and > characters. Because the resulting string is pasted directly into the text node of the element this does not result in a direct injection into the webpage; however, if a webpage subsequently copies the node's innerHTML, assigning it to another innerHTML, this would result in an XSS vulnerability. Two WYSIWYG editors were identified with this behavior, more may exist. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

CVSS Version 3.1
CVSS Version 2.0

nvd
CVE ID: CVE-2019-17022
Base Score: 6.1
Base Severity: MEDIUM
Vector String:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Impact Score: 2.7
Exploitability Score: 2.8

nvd
CVE ID: CVE-2019-17022
Base Score: 4.3
Base Severity: MEDIUM
Vector String:AV:N/AC:M/Au:N/C:N/I:P/A:N

Refrence: NVD

Description​

Description