CVE-2026-23885Public exploit

Host command execution via evaluated engine name

Published Jan 19, 2026 · Updated Jan 19, 2026

Eval injection in Alchemy CMS before 7.4.12 and 8.0.0 through 8.0.2 allows local users to execute arbitrary host commands. Alchemy::ResourcesHelper#resource_url_proxy passes resource_handler.engine_name to Ruby eval(), interpreting module configuration as code. Exploitation requires local file access to alter the module configuration and runs commands with the CMS host process privileges.

CVSS severity6.4
Medium
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Eval injection in Alchemy CMS before 7.4.12 and 8.0.0 through 8.0.2 allows local users to execute arbitrary host commands. Alchemy::ResourcesHelper#resource_url_proxy passes resource_handler.engine_name to Ruby eval(), interpreting module configuration as code. Exploitation requires local file access to alter the module configuration and runs commands with the CMS host process privileges.

The record

CVE
CVE-2026-23885
Published
Jan 19, 2026
Updated
Jan 19, 2026
Vendor
AlchemyCMS
Product
Alchemy CMS
Classifications
CWE-95, T1059
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 19, 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?

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

  1. Affected versionversion=< 7.4.12
  2. Affected versionversion=>= 8.0.0, < 8.0.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

AlchemyCMS · Alchemy CMSversion=< 7.4.12; version=>= 8.0.0, < 8.0.3

Published CVSS scores

6.4GitHubCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
9.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/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.

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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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-95Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval 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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