CVE-2017-7799: Mozilla Firefox

Medium severity, CVSS 6.1. EPSS: 1.4% chance of exploitation in the next 30 days.

JavaScript in the "about:webrtc" page is not sanitized properly being assigned to "innerHTML". Data on this page is supplied by WebRTC usage and is not under third-party control, making this difficult to exploit, but the vulnerability could possibly be used for a cross-site scripting (XSS) attack. This vulnerability affects Firefox < 55.

Affected products

• Mozilla Firefox: before 55.0 (fixed in 55.0)

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