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Vulnerability record · CVE-2009-1669 · published 18 May 2009

CVE-2009-1669: Smarty improper input validation vulnerability

Smarty · Smarty

The smarty_function_math function in libs/plugins/function.math.php in Smarty 2.6.22 allows context-dependent attackers to execute arbitrary commands via shell metacharacters in the equation attribute of the math function. NOTE: some of these details are obtained from third party information.

10.0 CVSS 2.0 High EPSS 14% · top 3.6% CWE-20 · Improper input validation
10.0CVSS 2.0 base score
14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
20References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

The smarty_function_math function in libs/plugins/function.math.php in Smarty 2.6.22 allows context-dependent attackers to execute arbitrary commands via shell metacharacters in the equation attribute of the math function. NOTE: some of these details are obtained from third party information.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://osvdb.org/54380
http://secunia.com/advisories/35072 Vendor Advisory
http://secunia.com/advisories/35219
http://www.securityfocus.com/bid/34918 Exploit
http://www.ubuntu.com/usn/usn-791-3
https://exchange.xforce.ibmcloud.com/vulnerabilities/50457
https://www.exploit-db.com/exploits/8659
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01274.html
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01283.html
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01287.html
http://osvdb.org/54380
http://secunia.com/advisories/35072 Vendor Advisory
http://secunia.com/advisories/35219
http://www.securityfocus.com/bid/34918 Exploit
http://www.ubuntu.com/usn/usn-791-3
https://exchange.xforce.ibmcloud.com/vulnerabilities/50457
https://www.exploit-db.com/exploits/8659
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01274.html
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01283.html
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01287.html

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2010-4725Smarty vulnerabilitySmarty before 3.0.0 RC3 does not properly handle an on value of the asp_tags option in the php.ini file, which has unspecified impact and remote atta…EPSS 1.9%10.0CVE-2010-4726Smarty vulnerabilityUnspecified vulnerability in the math plugin in Smarty before 3.0.0 RC1 has unknown impact and remote attack vectors. NOTE: this might overlap CVE-20…EPSS 1.9%10.0CVE-2010-4727Smarty improper input validation vulnerabilitySmarty before 3.0.0 beta 7 does not properly handle the <?php and ?> tags, which has unspecified impact and remote attack vectors.EPSS 1.9%10.0CVE-2009-5052Smarty vulnerabilityMultiple unspecified vulnerabilities in Smarty before 3.0.0 beta 6 have unknown impact and attack vectors.EPSS 1.9%10.0CVE-2010-4722Smarty vulnerabilityUnspecified vulnerability in the fetch plugin in Smarty before 3.0.2 has unknown impact and remote attack vectors.EPSS 1.9%10.0CVE-2010-4724Smarty vulnerabilityMultiple unspecified vulnerabilities in the parser implementation in Smarty before 3.0.0 RC3 have unknown impact and remote attack vectors.EPSS 1.9%9.8CVE-2021-26120Smarty template engine code injection via function nameSmarty before 3.1.39 allows code injection through an unexpected function name following a {function name= substring in a template. Because Smarty is…EPSS 82%analysed9.8CVE-2011-1028Smarty improper input validation vulnerabilityThe $smarty.template variable in Smarty3 allows attackers to possibly execute arbitrary PHP code via the sysplugins/smarty_internal_compile_private_s…EPSS 1.6%

Source: NIST National Vulnerability Database (record CVE-2009-1669), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.