CVE-2010-4582: Opera Browser

Medium severity, CVSS 5.0. EPSS: 2.3% chance of exploitation in the next 30 days.

Opera before 11.00 does not properly handle security policies during updates to extensions, which might allow remote attackers to bypass intended access restrictions via unspecified vectors.

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.