How severe is CVE-2011-3877?

CVE-2011-3877 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-3877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-3877?

CVE-2011-3877 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-3877?

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

When was CVE-2011-3877 published?

CVE-2011-3877 was published on 2011-10-25 and last updated on 2026-06-16.

CVE-2011-3877

CVE-2011-3877 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% (54th 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

Cross-site scripting (XSS) vulnerability in the appcache internals page in Google Chrome before 15.0.874.102 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2011-3877?: Cross-site scripting (XSS) vulnerability in the appcache internals page in Google Chrome before 15.0.874.102 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
How severe is CVE-2011-3877?: CVE-2011-3877 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-3877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3877?: CVE-2011-3877 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-3877?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-3877 published?: CVE-2011-3877 was published on 2011-10-25 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

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