CVE-2022-40634Network attack vector

Authenticated OS command execution via FreeMarker SSTI

Published Sep 13, 2022 · Updated Sep 16, 2024

Improper code-resource control in Crafter Studio before 3.1.23 allows remote authenticated users to execute OS commands via FreeMarker SSTI. The vendor identifies server-side FreeMarker template evaluation as the locus but has not published the affected function or unsafe evaluation path. A Crafter Studio account with the Developer role and user interaction are required; successful exploitation runs commands with the server process's privileges.

CVSS severity6.4
Medium
EPSS probability1.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper code-resource control in Crafter Studio before 3.1.23 allows remote authenticated users to execute OS commands via FreeMarker SSTI. The vendor identifies server-side FreeMarker template evaluation as the locus but has not published the affected function or unsafe evaluation path. A Crafter Studio account with the Developer role and user interaction are required; successful exploitation runs commands with the server process's privileges.

The record

CVE
CVE-2022-40634
Published
Sep 13, 2022
Updated
Sep 16, 2024
Vendor
Crafter Software Corporation
Product
CrafterCMS
Classifications
CWE-913, CWE-78, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=3.1 <=3.1.22

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Crafter Software Corporation · CrafterCMSversion=3.1 <=3.1.22

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.4Crafter CMSCVSS:3.1/AV:N/AC:H/PR:H/UI:R/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-913Improper Control of Dynamically-Managed Code Resources
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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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