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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-2061-1 | firefox-esr security update |
Debian DLA |
DLA-2071-1 | thunderbird security update |
Debian DSA |
DSA-4600-1 | firefox-esr security update |
Debian DSA |
DSA-4603-1 | thunderbird security update |
EUVD |
EUVD-2019-7496 | 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. |
Ubuntu USN |
USN-4234-1 | Firefox vulnerabilities |
Ubuntu USN |
USN-4241-1 | Thunderbird vulnerabilities |
Ubuntu USN |
USN-4335-1 | Thunderbird vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.
Status: PUBLISHED
Assigner: mozilla
Published:
Updated: 2024-08-05T01:24:48.712Z
Reserved: 2019-09-30T00:00:00
Link: CVE-2019-17022
No data.
Status : Modified
Published: 2020-01-08T22:15:12.730
Modified: 2024-11-21T04:31:33.833
Link: CVE-2019-17022
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA
EUVD
Ubuntu USN