CVE-2021-29454 | BDVDB-2026-167388 Detail
smarty-phpsmarty
Description#
Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.42 and 4.0.2, template authors could run arbitrary PHP code by crafting a malicious math string. If a math string was passed through as user provided data to the math function, external users could run arbitrary PHP code by crafting a malicious math string. Users should upgrade to version 3.1.42 or 4.0.2 to receive a patch.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact none. Attack vector: network.
Weaknesses#
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
References#
- https://github.com/smarty-php/smarty/security/advisories/GHSA-29gp-2c3m-3j6m
- https://github.com/smarty-php/smarty/commit/215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71
- https://github.com/smarty-php/smarty/releases/tag/v3.1.42
- https://github.com/smarty-php/smarty/releases/tag/v4.0.2
- https://packagist.org/packages/smarty/smarty
- https://www.smarty.net/docs/en/language.function.math.tpl
- https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html
- https://www.debian.org/security/2022/dsa-5151
- https://security.gentoo.org/glsa/202209-09
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.