How severe is CVE-2015-1303?

CVE-2015-1303 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2015-1303 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-1303?

CVE-2015-1303 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-1303?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2015-1303 published?

CVE-2015-1303 was published on 2015-10-12 and last updated on 2026-06-17.

CVE-2015-1303

CVE-2015-1303 is a high-severity vulnerability in Google Chrome with a CVSS 2.0 base score of 7.5. 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-20.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Google Chrome
Published: 2015-10-12
Last modified: 2026-06-17

Description

bindings/core/v8/V8DOMWrapper.h in Blink, as used in Google Chrome before 45.0.2454.101, does not perform a rethrow action to propagate information about a cross-context exception, which allows remote attackers to bypass the Same Origin Policy via a crafted HTML document containing an IFRAME element.

Frequently asked questions

What is CVE-2015-1303?: bindings/core/v8/V8DOMWrapper.h in Blink, as used in Google Chrome before 45.0.2454.101, does not perform a rethrow action to propagate information about a cross-context exception, which allows remote attackers to bypass the Same Origin Policy via a crafted HTML document containing an IFRAME element.
How severe is CVE-2015-1303?: CVE-2015-1303 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2015-1303 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-1303?: CVE-2015-1303 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-1303?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-1303 published?: CVE-2015-1303 was published on 2015-10-12 and last updated on 2026-06-17.

References

Affected products (1)

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

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