CVE-2009-3013: Opera Browser

Medium severity, CVSS 4.3. EPSS: 1.7% chance of exploitation in the next 30 days.

Opera 9.52 and earlier, and 10.00 Beta 3 Build 1699, does not properly block data: URIs in Location headers in HTTP responses, which allows remote attackers to conduct cross-site scripting (XSS) attacks via vectors related to (1) injecting a Location header that contains JavaScript sequences in a data:text/html URI or (2) entering a data:text/html URI with JavaScript sequences when specifying the content of a Location header. NOTE: the JavaScript executes outside of the context of the HTTP site.

Affected products

• Opera Opera Browser: up to and including 9.52; version 7.0 only; version 7.23 only; version 7.53 only; version 7.54 only; version 7.60 only; …

Published 2009-08-31. Last modified 2026-06-16.