CVE-2011-3881

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-10-25 · updated 2026-06-16
Weakness: CWE-79

Description

WebKit, as used in Google Chrome before 15.0.874.102 and Android before 4.4, allows remote attackers to bypass the Same Origin Policy and conduct Universal XSS (UXSS) attacks via vectors related to (1) the DOMWindow::clear function and use of a selection object, (2) the Object::GetRealNamedPropertyInPrototypeChain function and use of an __proto__ property, (3) the HTMLPlugInImageElement::allowedToLoadFrameURL function and use of a javascript: URL, (4) incorrect origins for XSLT-generated documents in the XSLTProcessor::createDocumentFromSource function, and (5) improper handling of synchronous frame loads in the ScriptController::executeIfJavaScriptURL function.

Affected products

Apple Iphone Os: before 5.1 — fixed in 5.1
Apple Safari: before 5.1.4 — fixed in 5.1.4
Android: before 4.4 — fixed in 4.4
Google Chrome: before 15.0.874.102 — fixed in 15.0.874.102

How to fix

Upgrade to a fixed version: Apple Iphone Os 5.1; Apple Safari 5.1.4; Android 4.4; Google Chrome 15.0.874.102. Check the vendor advisory for mitigations.

References

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