Is this vulnerability remotely exploitable?

Yes. If the `/api/puck/*` endpoints are reachable over the network, an attacker can remotely invoke them and perform actions that should normally be restricted by collection-level access rules.

Does an attacker need to be authenticated or have a specific role?

Not necessarily. The requirement depends on how the host application routes and protects `/api/puck/*`. If those routes are accessible without authentication, an unauthenticated attacker may be able to perform privileged CRUD operations; if they require login, any authenticated user may gain more power than intended.

What is the safest general fix pattern?

The safest pattern is to remove any unconditional access overrides from HTTP handlers and ensure that all plugin endpoints delegate to the standard authorization layer. Endpoints should respect both collection-level access rules and explicit `access` options provided to the plugin, defaulting to least privilege.

Severity:

CRITICAL RISK

(9.4)

Missing Authorization Controls (CWE-862) in Payload Puck CRUD API Endpoints

CVE-2026-39397

Published:

Apr 7, 2026

Status:

Undergoing Analysis

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

CRITICAL RISK

CRITICAL

(9.8)

OS Command Injection (CWE-78) in Totolink A7100RU CGI Handler setAccessDeviceCfg

Remote Code Execution on the Router

April 12, 2026

CWE-77;CWE-78

CRITICAL RISK

CRITICAL

(9.8)

OS Command Injection (CWE-78) in Totolink A7100RU CGI setLedCfg Handler

Remote Code Execution on the Router

April 12, 2026

Vulnerability Type

Category:

Missing Authorization

CWE:

CWE-862

Impact:

Privilege Escalation and Unauthorized Data Access/Modification

Severity:

CRITICAL RISK

(9.4)

CVSS Version:

3.1

Vulnerability Type

Category:

Missing Authorization

CWE:

CWE-862

Impact:

Privilege Escalation and Unauthorized Data Access/Modification

Severity:

CRITICAL RISK

(9.4)

CVSS Version:

3.1

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Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Missing Authorization Controls (CWE-862) in Payload Puck CRUD API Endpoints

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

(9.8)

OS Command Injection (CWE-78) in Totolink A7100RU CGI Handler setAccessDeviceCfg

CRITICAL RISK

CRITICAL

(9.8)

OS Command Injection (CWE-78) in Totolink A7100RU CGI setLedCfg Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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