How severe is CVE-2012-2899?

CVE-2012-2899 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2012-2899 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-2899?

CVE-2012-2899 primarily affects Google Chrome. In total, 45 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-2899?

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

When was CVE-2012-2899 published?

CVE-2012-2899 was published on 2014-01-05 and last updated on 2026-06-16.

CVE-2012-2899

CVE-2012-2899 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: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Google Chrome
Published: 2014-01-05
Last modified: 2026-06-16

Description

Google Chrome before 21.0.1180.82 on iOS makes certain incorrect calls to WebView methods that trigger use of an applewebdata: URL, which allows remote attackers to bypass the Same Origin Policy and conduct Universal XSS (UXSS) attacks via vectors involving the document.write method.

Frequently asked questions

What is CVE-2012-2899?: Google Chrome before 21.0.1180.82 on iOS makes certain incorrect calls to WebView methods that trigger use of an applewebdata: URL, which allows remote attackers to bypass the Same Origin Policy and conduct Universal XSS (UXSS) attacks via vectors involving the document.write method.
How severe is CVE-2012-2899?: CVE-2012-2899 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2012-2899 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-2899?: CVE-2012-2899 primarily affects Google Chrome. In total, 45 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-2899?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-2899 published?: CVE-2012-2899 was published on 2014-01-05 and last updated on 2026-06-16.

References

Affected products (45)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.0:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.1:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.2:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.31:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.32:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.33:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.34:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.35:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.36:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.37:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.38:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.39:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.41:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.46:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.47:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.48:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.49:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.50:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.51:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.52:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.53:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.54:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.55:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.56:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.57:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.59:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.60:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.61:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.62:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.63:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.64:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.68:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.69:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.70:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.71:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.72:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.73:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.74:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:21.0.1180.75:*:*:*:*:*:*:*

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