CVE-2020-15662: Mozilla Firefox Mobile

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

A rogue webpage could override the injected WKUserScript used by the download feature, this exploit could result in the user downloading an unintended file. This vulnerability affects Firefox for iOS < 28.

Affected products

• Mozilla Firefox Mobile: before 28.0 (fixed in 28.0)

Published 2020-08-10. Last modified 2026-08-19.