How severe is CVE-2011-3881?

CVE-2011-3881 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-3881 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-3881?

CVE-2011-3881 primarily affects Google Chrome. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-3881?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-3881 published?

CVE-2011-3881 was published on 2011-10-25 and last updated on 2026-06-16.

CVE-2011-3881

CVE-2011-3881 is a medium-severity vulnerability in Google Chrome with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Google Chrome
Published: 2011-10-25
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2011-3881?: 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.
How severe is CVE-2011-3881?: CVE-2011-3881 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-3881 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3881?: CVE-2011-3881 primarily affects Google Chrome. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-3881?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-3881 published?: CVE-2011-3881 was published on 2011-10-25 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:google:android:*:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*

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