CVE-2007-3819: Opera Browser

Medium severity, CVSS 5.0. EPSS: 2% chance of exploitation in the next 30 days.

Opera 9.21 allows remote attackers to spoof the data: URI scheme in the address bar via a long URI with trailing whitespace, which prevents the beginning of the URI from being displayed.

Affected products

• Opera Opera Browser: version 9.21 only

Published 2007-07-17. Last modified 2026-06-16.