CVE-2019-17016

MediumCVSS 6.1/10Last modified Jun 17, 2026

Description

When pasting a &lt;style&gt; tag from the clipboard into a rich text editor, the CSS sanitizer incorrectly rewrites a @namespace rule. This could allow for injection into certain types of websites resulting in data exfiltration. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

VendorProductVersions
MozillaFirefox ESRbefore 68.4
MozillaFirefoxbefore 72

References

Timeline

Published
Jan 8, 2020
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2019

CVE-2019-170178.8Due to a missing case handling object types, a type confusion vulnerability could occur, resulting in a crash. We presume that with enough eCVE-2019-170185.3When in Private Browsing Mode on Windows 10, the Windows keyboard may retain word suggestions to improve the accuracy of the keyboard. This CVE-2019-170198.8When Python was installed on Windows, a python file being served with the MIME type of text/plain could be executed by Python instead of beiCVE-2019-17026.1Multiple vulnerabilities in the web-based management interface of Cisco Enterprise Chat and Email could allow an unauthenticated, remote attCVE-2019-170206.5If an XML file is served with a Content Security Policy and the XML file includes an XSL stylesheet, the Content Security Policy will not beCVE-2019-170215.3During the initialization of a new content process, a race condition occurs that can allow a content process to disclose heap addresses fromCVE-2019-170226.1When pasting a &lt;style&gt; tag from the clipboard into a rich text editor, the CSS sanitizer does not escape &lt; and &gt; characters. BecCVE-2019-170236.5After a HelloRetryRequest has been sent, the client may negotiate a lower protocol that TLS 1.3, resulting in an invalid state transition inCVE-2019-170248.8Mozilla developers reported memory safety bugs present in Firefox 71 and Firefox ESR 68.3. Some of these bugs showed evidence of memory corrCVE-2019-170258.8Mozilla developers reported memory safety bugs present in Firefox 71. Some of these bugs showed evidence of memory corruption and we presumeCVE-2019-170268.8Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted atCVE-2019-17038.6A vulnerability in the internal packet-processing functionality of Cisco Firepower Threat Defense (FTD) Software for the Cisco Firepower 210
CVE-2019-17016: Medium severity, CVSS 6.1 | Vulnix