CVE-2016-9071: Mozilla Firefox

Medium severity, CVSS 5.3. EPSS: 1.9% chance of exploitation in the next 30 days.

Content Security Policy combined with HTTP to HTTPS redirection can be used by malicious server to verify whether a known site is within a user's browser history. This vulnerability affects Firefox < 50.

Affected products

• Mozilla Firefox: before 50.0 (fixed in 50.0)

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