CVE-2010-4580: Opera Browser

Medium severity, CVSS 5.0. EPSS: 2.2% chance of exploitation in the next 30 days.

Opera before 11.00 does not clear WAP WML form fields after manual navigation to a new web site, which allows remote attackers to obtain sensitive information via an input field that has the same name as an input field on a previously visited web site.

Affected products

• Opera Opera Browser: up to and including 11.00; version 5.0 only; version 5.02 only; version 5.10 only; version 5.11 only; version 5.12 only; …

Published 2010-12-22. Last modified 2026-06-16.