CVE-2025-70073Public exploitNetwork attack vector

Authenticated code execution via FreeMarker template injection

Published Feb 5, 2026 · Updated Feb 5, 2026

Server-side template injection in ChestnutCMS 1.5.8 and earlier allows remote authenticated users to execute code via crafted templates. The administrator backend saves arbitrary FreeMarker expressions in template files, and CoreController renders them through /cms/preview/* without a sandbox. Code execution requires template-edit permission and a deployment whose FreeMarker configuration and JVM policies permit method execution.

CVSS severity7.2
High
EPSS probability0.67%
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 ChestnutCMS 1.5.8 and earlier allows remote authenticated users to execute code via crafted templates. The administrator backend saves arbitrary FreeMarker expressions in template files, and CoreController renders them through /cms/preview/* without a sandbox. Code execution requires template-edit permission and a deployment whose FreeMarker configuration and JVM policies permit method execution.

The record

CVE
CVE-2025-70073
Published
Feb 5, 2026
Updated
Feb 5, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.2CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

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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