How severe is CVE-2015-1266?

CVE-2015-1266 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2015-1266 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-1266?

CVE-2015-1266 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-1266?

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

When was CVE-2015-1266 published?

CVE-2015-1266 was published on 2015-06-26 and last updated on 2026-06-17.

CVE-2015-1266

CVE-2015-1266 is a medium-severity vulnerability in Google Chrome with a CVSS 2.0 base score of 5.0. 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-254.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-254
Affected product: Google Chrome
Published: 2015-06-26
Last modified: 2026-06-17

Description

content/browser/webui/content_web_ui_controller_factory.cc in Google Chrome before 43.0.2357.130 does not properly consider the scheme in determining whether a URL is associated with a WebUI SiteInstance, which allows remote attackers to bypass intended access restrictions via a similar URL, as demonstrated by use of http://gpu when there is a WebUI class for handling chrome://gpu requests.

Frequently asked questions

What is CVE-2015-1266?: content/browser/webui/content_web_ui_controller_factory.cc in Google Chrome before 43.0.2357.130 does not properly consider the scheme in determining whether a URL is associated with a WebUI SiteInstance, which allows remote attackers to bypass intended access restrictions via a similar URL, as demonstrated by use of http://gpu when there is a WebUI class for handling chrome://gpu requests.
How severe is CVE-2015-1266?: CVE-2015-1266 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2015-1266 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-1266?: CVE-2015-1266 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-1266?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-1266 published?: CVE-2015-1266 was published on 2015-06-26 and last updated on 2026-06-17.

References

Affected products (1)

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

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