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Smarty3 Arbitrary PHP Code Execution

Critical severity GitHub Reviewed Published Apr 22, 2022 to the GitHub Advisory Database • Updated Jan 12, 2024

Package

composer smarty/smarty (Composer)

Affected versions

< 3.0.7

Patched versions

3.0.7

Description

The $smarty.template variable in Smarty3 allows attackers to possibly execute arbitrary PHP code via the sysplugins/smarty_internal_compile_private_special_variable.php file.

References

Published by the National Vulnerability Database Nov 20, 2019
Published to the GitHub Advisory Database Apr 22, 2022
Reviewed Jan 12, 2024
Last updated Jan 12, 2024

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

0.512%
(77th percentile)

Weaknesses

CVE ID

CVE-2011-1028

GHSA ID

GHSA-6frx-2r5w-c524

Source code

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