CVE-2020-12414: Mozilla Firefox Mobile

Medium severity, CVSS 6.5. EPSS: 0.7% chance of exploitation in the next 30 days.

IndexedDB should be cleared when leaving private browsing mode and it is not, the API for WKWebViewConfiguration was being used incorrectly and requires the private instance of this object be deleted when leaving private mode. This vulnerability affects Firefox for iOS < 27.

Affected products

• Mozilla Firefox Mobile: before 27.0 (fixed in 27.0)

Published 2020-07-09. Last modified 2026-08-19.