CVE-2007-5540: Opera Browser

High severity, CVSS 7.5. EPSS: 3.1% chance of exploitation in the next 30 days.

Unspecified vulnerability in Opera before 9.24 allows remote attackers to overwrite functions on pages from other domains and bypass the same-origin policy via unknown vectors.

Affected products

• Opera Opera Browser: up to and including 9.23; version 1.00 only; version 2.00 only; version 2.10 only; version 2.12 only; version 3.00 only; …

Published 2007-10-18. Last modified 2026-06-16.