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CVE-2021-21408

Date: January 9, 2022

Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.43 and 4.0.3, template authors could run restricted static php methods. Users should upgrade to version 3.1.43 or 4.0.3 to receive a patch.

Language: PHP

Severity Score

Related Resources (16)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/
https://nvd.nist.gov/vuln/detail/CVE-2021-21408
https://github.com/smarty-php/smarty/releases/tag/v4.0.3
https://github.com/smarty-php/smarty/commit/19ae410bf56007a5ef24441cdc6414619cfaf664
https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html
https://github.com/smarty-php/smarty/security/advisories/GHSA-4h9c-v5vg-5m6m
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ
https://security.gentoo.org/glsa/202209-09
https://security-tracker.debian.org/tracker/CVE-2021-21408
https://github.com/FriendsOfPHP/security-advisories/blob/master/smarty/smarty/CVE-2021-21408.yaml
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/
https://github.com/smarty-php/smarty/releases/tag/v3.1.43
https://www.debian.org/security/2022/dsa-5151
https://github.com/smarty-php/smarty
https://www.mend.io/vulnerability-database/CVE-2021-21408

Severity Score

Weakness Type (CWE)

Improper Input Validation

CWE-20

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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