Is this vulnerability remotely exploitable over the internet?

Yes, it can be exploited remotely against exposed Craft CMS control panels, but the attacker must first obtain valid credentials for any Control Panel account (for example, an Author or Editor). Once authenticated, specially crafted condition rules can be sent through normal element listing interfaces.

What level of access does an attacker need to exploit this issue?

The attacker only needs basic Control Panel access; administrator privileges or special permissions are not required. Any authenticated user who can interact with element listings using conditions can potentially trigger the vulnerable code path.

What is the safest general fix pattern for this class of vulnerability?

The safest pattern is to never execute or render user-controlled strings as code or templates. Use strict data models (enums, IDs, typed fields) for conditions, and if a template engine must be used, run it in a tightly sandboxed environment that cannot access dangerous functions or the underlying system.

Severity:

HIGH RISK

(8.8)

Code Injection via Unsandboxed Twig Rendering (CWE-94) in Craft CMS Conditions System

CVE-2026-31857

Published:

Mar 11, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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May 6, 2026

Vulnerability Type

Category:

Code Injection

CWE:

CWE-94

Impact:

Remote Code Execution by low-privileged authenticated users

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Code Injection

CWE:

CWE-94

Impact:

Remote Code Execution by low-privileged authenticated users

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

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Code Injection via Unsandboxed Twig Rendering (CWE-94) in Craft CMS Conditions System

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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