CVE-2020-15676
Medium
Description
Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting in JavaScript being executed after pasting attacker-controlled data into a contenteditable element. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.
SeverityMedium
CVSS6.1
Exploit probability—
Product
Mozilla Firefox
PublishedOct 1, 2020
First seenOct 1, 2020
How to fix
Update
- mozilla firefox81.0 or later
- mozilla firefox_esr78.3 or later
- mozilla thunderbird78.3 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 81.0 | 81.0 |
| mozilla firefox_esr | v < 78.3 | 78.3 |
| mozilla thunderbird | v < 78.3 | 78.3 |
| debian debian_linux | 9.0, 10.0 | — |
| opensuse leap | 15.1, 15.2 | — |
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