CVE-2015-0822: Mozilla Firefox

Medium severity, CVSS 4.3. EPSS: 2.5% chance of exploitation in the next 30 days.

The Form Autocompletion feature in Mozilla Firefox before 36.0, Firefox ESR 31.x before 31.5, and Thunderbird before 31.5 allows remote attackers to read arbitrary files via crafted JavaScript code.

Affected products

• Mozilla Firefox: up to and including 35.0.1; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …
• Mozilla Firefox ESR: version 31.1 only; version 31.2 only; version 31.3 only; version 31.4 only; version 31.5 only
• Mozilla Thunderbird: up to and including 31.4; version 31.0 only; version 31.1.2 only; version 31.2 only; version 31.3 only

Published 2015-02-25. Last modified 2026-06-17.