What’s Vulnerable › Vulnerabilities

CVE-2017-1000453

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-01-02 · updated 2026-06-17
• Weakness: CWE-74

Description

CMS Made Simple version 2.1.6 and 2.2 are vulnerable to Smarty templating injection in some core modules, resulting in unauthenticated PHP code execution.

Affected products

• CMS Made Simple: before 2.2; from 2.2.1 — fixed in 2.2

How to fix

Upgrade to a fixed version: CMS Made Simple 2.2. Check the vendor advisory for mitigations.

References

• https://www.cmsmadesimple.org/2017/06/Announcing-CMSMS-2-2-1-Hearts-Desire/
• https://www.cmsmadesimple.org/2017/06/Announcing-CMSMS-2-2-1-Hearts-Desire/

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