CVE-2004-0537: Opera Browser

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

Opera 7.50 and earlier allows remote web sites to provide a "Shortcut Icon" (favicon) that is wider than expected, which could allow the web sites to spoof a trusted domain and facilitate phishing attacks using a wide icon and extra spaces.

Affected products

• Opera Opera Browser: up to and including 7.50

Published 2004-08-06. Last modified 2026-06-16.