Is this vulnerability remotely exploitable?

Yes. The vulnerable MarkItUp preview AJAX endpoint is reachable over HTTP(S), so any attacker who can send requests to it can attempt exploitation, subject to authentication and access controls in front of the editor interface.

What level of access does an attacker need?

Typically, the attacker must have at least enough access to interact with the editor or preview functionality (e.g., an authenticated user with content editing rights). In misconfigured environments where the endpoint is more broadly exposed, even unauthenticated users might be able to trigger it.

What is the safest general fix pattern?

Remove or refactor any use of eval-like constructs in the preview endpoint so that user input is processed strictly as data. Implement strict validation and encoding of all parameters before use, and rely on templating or rendering libraries that do not execute arbitrary code.

Severity:

HIGH RISK

(7.3)

Code Injection via eval (CWE-94/CWE-74) in MaxSite CMS MarkItUp Preview AJAX Endpoint

CVE-2026-3395

Published:

Mar 1, 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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CRITICAL RISK

CRITICAL

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SQL Injection via PostgreSQL Array/Row Expressions (CWE-89) in WeKnora Query Engine

Remote Code Execution via SQL Injection on the Database Server

March 7, 2026

Vulnerability Type

Category:

Code Injection

CWE:

CWE-74;CWE-94

Impact:

Remote Code Execution on the web server via a CMS plugin endpoint

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

Vulnerability Type

Category:

Code Injection

CWE:

CWE-74;CWE-94

Impact:

Remote Code Execution on the web server via a CMS plugin endpoint

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Code Injection via eval (CWE-94/CWE-74) in MaxSite CMS MarkItUp Preview AJAX Endpoint

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

CRITICAL RISK

CRITICAL

(9.9)

Command Injection in MCP Stdio Configuration Validation (CWE-78) in WeKnora

CRITICAL RISK

CRITICAL

(9.9)

SQL Injection via PostgreSQL Array/Row Expressions (CWE-89) in WeKnora Query Engine

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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