CVE-2010-4396: Realnetworks Realplayer

Medium severity, CVSS 4.3. EPSS: 1.2% chance of exploitation in the next 30 days.

Cross-zone scripting vulnerability in the HandleAction method in a certain ActiveX control in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.5, and RealPlayer Enterprise 2.1.2 allows remote attackers to inject arbitrary web script or HTML in the Local Zone by specifying a local file in a NavigateToURL action, as demonstrated by a local skin file.

Affected products

• Realnetworks Realplayer: version 11.0 only; version 11.0.1 only; version 11.0.2 only; version 11.0.3 only; version 11.0.4 only; version 11.0.5 only; …
• Realnetworks Realplayer SP: version 1.0.0 only; version 1.0.1 only; version 1.0.2 only; version 1.0.5 only; version 1.1 only; version 1.1.1 only; …

Published 2010-12-14. Last modified 2026-06-16.