Description
When pasting a &lt;style&gt; tag from the clipboard into a rich text editor, the CSS sanitizer does not escape &lt; and &gt; 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.
Published: 2020-01-08
Score: 6.1 Medium
EPSS: 4.6% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2061-1 firefox-esr security update
Debian DLA Debian DLA DLA-2071-1 thunderbird security update
Debian DSA Debian DSA DSA-4600-1 firefox-esr security update
Debian DSA Debian DSA DSA-4603-1 thunderbird security update
EUVD EUVD EUVD-2019-7496 When pasting a &lt;style&gt; tag from the clipboard into a rich text editor, the CSS sanitizer does not escape &lt; and &gt; 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 Ubuntu USN USN-4234-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-4241-1 Thunderbird vulnerabilities
Ubuntu USN Ubuntu USN USN-4335-1 Thunderbird vulnerabilities
History

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Subscriptions

Canonical Ubuntu Linux
Debian Debian Linux
Mozilla Firefox Firefox Esr
Redhat Enterprise Linux Enterprise Linux Desktop Enterprise Linux Server Enterprise Linux Server Aus Enterprise Linux Server Tus Enterprise Linux Workstation Rhel E4s
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-05T01:24:48.712Z

Reserved: 2019-09-30T00:00:00.000Z

Link: CVE-2019-17022

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-01-08T22:15:12.730

Modified: 2024-11-21T04:31:33.833

Link: CVE-2019-17022

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-01-07T00:00:00Z

Links: CVE-2019-17022 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses