CVE-2017-20064Public exploitNetwork attack vector

Arbitrary command execution via layout template injection

Published Jun 20, 2022 · Updated Apr 15, 2025

Code injection in Elefant CMS 1.3.12-RC allows remote authenticated users to execute arbitrary commands through the layout editor. The /designer/add/layout handler accepts a passthru function call embedded in layout-template syntax and compiles it into executable PHP. An account permitted to edit themes is required; the admin role has that permission by default, and successful exploitation runs attacker-selected commands.

CVSS severity8.8
High
EPSS probability1.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Elefant CMS 1.3.12-RC allows remote authenticated users to execute arbitrary commands through the layout editor. The /designer/add/layout handler accepts a passthru function call embedded in layout-template syntax and compiles it into executable PHP. An account permitted to edit themes is required; the admin role has that permission by default, and successful exploitation runs attacker-selected commands.

The record

CVE
CVE-2017-20064
Published
Jun 20, 2022
Updated
Apr 15, 2025
Vendor
HASOMED GmbH
Product
Elefant
Classifications
CWE-94, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 20, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 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=1.3.12-RC

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HASOMED GmbH · Elefantversion=1.3.12-RC

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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
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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