CVE-2017-7837: Mozilla Firefox

Medium severity, CVSS 5.3. EPSS: 1.5% chance of exploitation in the next 30 days.

SVG loaded through "<img>" tags can use "<meta>" tags within the SVG data to set cookies for that page. This vulnerability affects Firefox < 57.

Affected products

• Mozilla Firefox: up to and including 56.0.2

Published 2018-06-11. Last modified 2026-06-17.