Is this vulnerability remotely exploitable over the internet?

Yes. If the `/rest/configure` endpoint is exposed to the internet or any untrusted network, an attacker can exploit it remotely without prior authentication to achieve code execution.

Does an attacker need valid credentials or an existing session?

No. The issue arises because the endpoint does not enforce authentication or authorization. Any party able to send HTTP requests to the vulnerable endpoint can attempt exploitation.

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

The most robust fix is to enforce strict authentication and authorization on all configuration and plugin-management endpoints, and to decouple them from unauthenticated user-facing APIs. Additionally, limit plugin loading to vetted, local, or whitelisted sources rather than arbitrary URLs.

Severity:

CRITICAL RISK

(9.8)

Missing Authentication on Plugin Configuration Endpoint (CWE-306) in Arelle REST API

CVE-2026-42796

Published:

May 4, 2026

Status:

Awaiting 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

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HIGH RISK

HIGH

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Privilege Escalation via Bypassed Access Control

May 6, 2026

Vulnerability Type

Category:

Missing Authentication / Authorization on Critical Function

CWE:

CWE-306

Impact:

Remote Code Execution

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Missing Authentication / Authorization on Critical Function

CWE:

CWE-306

Impact:

Remote Code Execution

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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Missing Authentication on Plugin Configuration Endpoint (CWE-306) in Arelle REST API

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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