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Smarty CVE-2021-26120

CRITICAL
Code Injection (CWE-94)
2021-02-22 cve@mitre.org
RCE Code Injection Smarty Debian Linux
9.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
CVE Published
Feb 22, 2021 - 02:15 nvd
CRITICAL 9.8

DescriptionNVD

Smarty before 3.1.39 allows code injection via an unexpected function name after a {function name= substring.

AnalysisAI

Smarty before 3.1.39 allows code injection via an unexpected function name after a {function name= substring. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical ContextAI

This vulnerability is classified as Code Injection (CWE-94), which allows attackers to inject and execute arbitrary code within the application. Smarty before 3.1.39 allows code injection via an unexpected function name after a {function name= substring. Affected products include: Smarty, Debian Debian Linux. Version information: before 3.1.39.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Never evaluate user-controlled input as code. Use sandboxing, disable dangerous functions, apply strict input validation.

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CVE-2021-26120 vulnerability details – vuln.today
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