CVE-2010-4727

CVE-2010-4727 is a critical-severity vulnerability in Smarty with a CVSS 2.0 base score of 10.0. 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-20.

Key facts

• Severity: Critical (CVSS 2.0 base score 10.0)
• EPSS exploit prediction: 2% (77th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-20
• Affected product: Smarty
• Published: 2011-02-03
• Last modified: 2026-06-16

Description

Smarty before 3.0.0 beta 7 does not properly handle the <?php and ?> tags, which has unspecified impact and remote attack vectors.

Frequently asked questions

What is CVE-2010-4727?

Smarty before 3.0.0 beta 7 does not properly handle the <?php and ?> tags, which has unspecified impact and remote attack vectors.

How severe is CVE-2010-4727?

CVE-2010-4727 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2010-4727 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4727?

CVE-2010-4727 primarily affects Smarty. In total, 64 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-4727?

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

When was CVE-2010-4727 published?

CVE-2010-4727 was published on 2011-02-03 and last updated on 2026-06-16.

References

• http://smarty-php.googlecode.com/svn/trunk/distribution/change_log.txt

Affected products (64)

• cpe:2.3:a:smarty:smarty:*:beta6:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.0a:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.0b:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.4.0:b1:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.4.0:b2:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.4.3:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.4.4:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.4.5:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.4.6:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.5.0:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:1.5.2:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.5.0:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.5.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.5.0:rc2:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.6.0:*:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.6.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.6.0:rc2:*:*:*:*:*:*
• cpe:2.3:a:smarty:smarty:2.6.0:rc3:*:*:*:*:*:*

More vulnerabilities in Smarty

• CVE-2010-4726 — Critical (CVSS 10.0): Unspecified vulnerability in the math plugin in Smarty before 3.0.0 RC1 has unknown impact and remote attack vectors.…
• CVE-2010-4725 — Critical (CVSS 10.0): Smarty before 3.0.0 RC3 does not properly handle an on value of the asp_tags option in the php.ini file, which has…
• CVE-2010-4724 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in the parser implementation in Smarty before 3.0.0 RC3 have unknown impact and…
• CVE-2010-4722 — Critical (CVSS 10.0): Unspecified vulnerability in the fetch plugin in Smarty before 3.0.2 has unknown impact and remote attack vectors.
• CVE-2009-5052 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in Smarty before 3.0.0 beta 6 have unknown impact and attack vectors.
• CVE-2009-1669 — Critical (CVSS 10.0): The smarty_function_math function in libs/plugins/function.math.php in Smarty 2.6.22 allows context-dependent attackers…

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