How severe is CVE-2010-1236?

CVE-2010-1236 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2010-1236 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-1236?

CVE-2010-1236 primarily affects Google Chrome. In total, 225 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-1236?

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

When was CVE-2010-1236 published?

CVE-2010-1236 was published on 2010-04-01 and last updated on 2026-06-16.

CVE-2010-1236

CVE-2010-1236 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% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Google Chrome
Published: 2010-04-01
Last modified: 2026-06-16

Description

The protocolIs function in platform/KURLGoogle.cpp in WebCore in WebKit before r55822, as used in Google Chrome before 4.1.249.1036 and Flock Browser 3.x before 3.0.0.4112, does not properly handle whitespace at the beginning of a URL, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted javascript: URL, as demonstrated by a \x00javascript:alert sequence.

Frequently asked questions

What is CVE-2010-1236?: The protocolIs function in platform/KURLGoogle.cpp in WebCore in WebKit before r55822, as used in Google Chrome before 4.1.249.1036 and Flock Browser 3.x before 3.0.0.4112, does not properly handle whitespace at the beginning of a URL, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted javascript: URL, as demonstrated by a \x00javascript:alert sequence.
How severe is CVE-2010-1236?: CVE-2010-1236 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2010-1236 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-1236?: CVE-2010-1236 primarily affects Google Chrome. In total, 225 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-1236?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-1236 published?: CVE-2010-1236 was published on 2010-04-01 and last updated on 2026-06-16.

References

Affected products (225)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.1.38.1:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.1.38.2:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.1.38.4:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.1.40.1:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.1.42.2:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:0.1.42.3:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:1.0.154.53:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:1.0.154.59:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:1.0.154.64:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:1.0.154.65:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:2.0.169.0:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:2.0.169.1:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:2.0.170.0:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:2.0.172.2:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:2.0.172.8:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:2.0.172.27:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:2.0.172.28:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:2.0.172.30:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:2.0.172.33:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:2.0.172.37:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:2.0.172.38:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:3.0.182.2:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:3.0.190.2:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:3.0.195.25:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:3.0.195.27:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:3.0.195.33:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:3.0.195.36:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:3.0.195.37:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:3.0.195.38:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:4.0.212.0:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:4.0.212.1:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:4.0.221.8:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:4.0.222.0:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:4.0.222.1:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:4.0.222.5:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:4.0.222.12:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:4.0.223.0:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:4.0.223.1:*:*:*:*:*:*:*
cpe:2.3:a:google:chrome:4.0.223.2:*:*:*:*:*:*:*

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