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Access to restricted PHP code by dynamic static class access in smarty

High severity GitHub Reviewed Published Jan 10, 2022 in smarty-php/smarty • Updated Feb 7, 2024

Package

composer smarty/smarty (Composer)

Affected versions

< 3.1.43
>= 4.0.0, < 4.0.3

Patched versions

3.1.43
4.0.3

Description

Impact

Template authors could run restricted static php methods.

Patches

Please upgrade to 3.1.40 or higher.

References

See the documentation on Smarty security features on the static_classes access filter.

For more information

If you have any questions or comments about this advisory please open an issue in the Smarty repo

References

@wisskid wisskid published to smarty-php/smarty Jan 10, 2022
Published by the National Vulnerability Database Jan 10, 2022
Reviewed Jan 10, 2022
Published to the GitHub Advisory Database Jan 12, 2022
Last updated Feb 7, 2024

Severity

High
8.8
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CVE ID

CVE-2021-21408

GHSA ID

GHSA-4h9c-v5vg-5m6m

Source code

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