| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 72.0 | 72.0 |
| firefox esr | < 68.4 | 68.4 |
When pasting a <style> 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.
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