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CVE-2010-3870

6.8 · MEDIUM

The utf8_decode function in PHP before 5.3.4 does not properly handle non-shortest form UTF-8 encoding and ill-formed subsequences in UTF-8 data, which makes it easier for remote attackers to bypas…

Published Nov 12, 2010phpCWE-20EPSS 11.28%

Overview

CVE-2010-3870 is a medium-severity vulnerability affecting php php. It was published on November 12, 2010 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The utf8_decode function in PHP before 5.3.4 does not properly handle non-shortest form UTF-8 encoding and ill-formed subsequences in UTF-8 data, which makes it easier for remote attackers to bypass cross-site scripting (XSS) and SQL injection protection mechanisms via a crafted string.

Remediation

Check the references section for vendor advisories and patches from php. Update php to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
phpphp>= 0, < 5.2.14Affected

References

Refbugs.php.net/bug.php?id=48230Refbugs.php.net/bug.php?id=49687Reflists.apple.com/archives/security-announce/2011/Mar/msg00006.htmlReflists.fedoraproject.org/pipermail/package-announce/2011-January/052836.htmlReflists.fedoraproject.org/pipermail/package-announce/2011-January/052845.htmlReflists.opensuse.org/opensuse-security-announce/2010-12/msg00000.htmlRefmarc.info/?l=bugtraq&m=133469208622507&w=2Refsecunia.com/advisories/42410Refsecunia.com/advisories/42812Refsirdarckcat.blogspot.com/2009/10/couple-of-unicode-issues-on-php-and.html

How CyberStrike helps

Frequently asked questions

What is CVE-2010-3870?

CVE-2010-3870 is a medium-severity vulnerability affecting php php. It was published on November 12, 2010 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

How severe is CVE-2010-3870?

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2010-3870?

Check the references section for vendor advisories and patches from php. Update php to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2010-3870?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2010-3870 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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