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Crafter Cms CVE-2018-19907

HIGH
OS Command Injection (CWE-78)
2018-12-06 cve@mitre.org
8.8
CVSS 3.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK

2 techniques across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

A remote attacker could execute arbitrary operating system commands on the host by sending crafted requests to the affected application.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 1.7% exploitation probability (EPSS)

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AnalysisAI

A Server-Side Template Injection issue was discovered in Crafter CMS 3.0.18. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.

Affected Packages

maven org.craftercms:crafter-studio no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in maven

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. A Server-Side Template Injection issue was discovered in Crafter CMS 3.0.18. Attackers with developer privileges may execute OS commands by Creating/Editing a template file (.ftl filetype) that triggers a call to freemarker.template.utility.Execute in the FreeMarker library during rendering of a web page. Affected products include: Craftercms Crafter Cms.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

A Server-Side Template Injection issue was discovered in Crafter CMS 3.0.18. Attackers with developer privileges may execute OS commands by Creating/Editing a template file (.ftl filetype) that triggers a call to freemarker.template.utility.Execute in the FreeMarker library during rendering of a web page.

Threat Intelligence Overview

EPSS Score
1.7%
Top 26% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 1.7%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

66
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +44
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

Affected Products (CPE)NVD

cpe:2.3:a:craftercms:crafter_cms:*:*:*:*:*:*:*:*
CVE-2017-15681 CRITICAL
9.8 Nov 27

In Crafter CMS Crafter Studio 3.0.1 a directory traversal vulnerability exists which allows unauthenticated attackers to

CVE-2021-23264 CRITICAL
9.1 Dec 02

Installations, where crafter-search is not protected, allow unauthenticated remote attackers to create, view, and delete

CVE-2017-15685 HIGH
8.6 Nov 27

Crafter CMS Crafter Studio 3.0.1 is affected by: XML External Entity (XXE). Rated high severity (CVSS 8.6), this vulnera

CVE-2017-15683 HIGH
8.6 Nov 27

In Crafter CMS Crafter Studio 3.0.1 an unauthenticated attacker is able to create a site with specially crafted XML that

CVE-2017-15684 HIGH
7.5 Nov 27

Crafter CMS Crafter Studio 3.0.1 has a directory traversal vulnerability which allows unauthenticated attackers to view

CVE-2021-23263 HIGH
7.5 Dec 02

Unauthenticated remote attackers can read textual content via FreeMarker including files /scripts/*, /templates/* and so

CVE-2023-26020 HIGH
7.2 Feb 17

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Crafter Studio on

CVE-2022-40635 HIGH
7.2 Sep 13

Improper Control of Dynamically-Managed Code Resources vulnerability in Crafter Studio of Crafter CMS allows authenticat

CVE-2022-40634 HIGH
7.2 Sep 13

Improper Control of Dynamically-Managed Code Resources vulnerability in Crafter Studio of Crafter CMS allows authenticat

CVE-2021-23262 HIGH
7.2 Dec 02

Authenticated administrators may modify the main YAML configuration file and load a Java class resulting in RCE. Rated h

CVE-2021-23259 HIGH
7.2 Dec 02

Authenticated users with Administrator or Developer roles may execute OS commands by Groovy Script which uses Groovy lib

CVE-2021-23258 HIGH
7.2 Dec 02

Authenticated users with Administrator or Developer roles may execute OS commands by SPEL Expression in Spring beans. Ra

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