CVE-2024-27623Public exploitNetwork attack vector

Authenticated template expression injection via Breadcrumbs editing

Published Mar 5, 2024 · Updated Dec 17, 2025

Server-side template injection in CMS Made Simple 2.2.19 allows remote authenticated users to evaluate Smarty expressions in page output. The Design Manager stores unneutralized expressions entered while editing the Breadcrumbs template, and Smarty evaluates them when the affected page renders. Administrative access and a separate page visit are required; demonstrated arithmetic payloads alter rendered output, while broader code execution is not established.

CVSS severity5.9
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side template injection in CMS Made Simple 2.2.19 allows remote authenticated users to evaluate Smarty expressions in page output. The Design Manager stores unneutralized expressions entered while editing the Breadcrumbs template, and Smarty evaluates them when the affected page renders. Administrative access and a separate page visit are required; demonstrated arithmetic payloads alter rendered output, while broader code execution is not established.

The record

CVE
CVE-2024-27623
Published
Mar 5, 2024
Updated
Dec 17, 2025
Vendor
CMS Made Simple Foundation
Product
CMS Made Simple
Classifications
CWE-1336
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.2.19

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

CMS Made Simple Foundation · CMS Made Simpleversion=2.2.19

Published CVSS scores

5.9CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1336Improper Neutralization of Special Elements Used in a Template Engine

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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