CVE-2011-4690: Opera Browser

Medium severity, CVSS 5.0. EPSS: 1.1% chance of exploitation in the next 30 days.

Opera 11.60 and earlier does not prevent capture of data about the times of Same Origin Policy violations during IFRAME loading attempts, which makes it easier for remote attackers to determine whether a document exists in the browser cache via crafted JavaScript code.

Affected products

• Opera Opera Browser: up to and including 11.60

Published 2011-12-07. Last modified 2026-06-16.