CVE-2019-17016

Summary

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.

Affected Software

VendorProductVersion RangeStatus
MozillaFirefox ESRbefore 68.4affected
MozillaFirefoxbefore 72affected

Weaknesses

  • Bypass of @namespace CSS sanitization during pasting

ADP Enrichment

CVE Program Container

Additional References

References