Is this vulnerability remotely exploitable over the internet?

Yes. If the Hoppscotch backend, including the `/v1/onboarding/config` endpoint, is accessible from the internet or any untrusted network, an attacker can exploit this issue remotely with just a crafted HTTP POST request.

Does an attacker need a valid user account or admin access to exploit this?

No. The vulnerability stems from the absence of authentication on the onboarding configuration endpoint. An attacker does not need any credentials or existing account; simple network reachability is sufficient.

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

The safest pattern is to apply strict authentication and authorization to all configuration and onboarding endpoints, combined with a one-time onboarding state that disables or locks down setup routes after initial configuration. Only authenticated administrators should be permitted to modify infrastructure settings, OAuth providers, and secret-related configuration.

Severity:

CRITICAL RISK

(9.1)

Missing Access Control on Onboarding Configuration Endpoint (CWE-284) in Hoppscotch Self-Hosted Instances

CVE-2026-28215

Published:

Feb 26, 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

Recent Vulnerabilities

CWE-78

CRITICAL RISK

CRITICAL

(9.9)

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

Remote Code Execution

March 7, 2026

CWE-89

CRITICAL RISK

CRITICAL

(9.9)

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:

Broken / Missing Access Control

CWE:

CWE-284;CWE-287

Impact:

Account Takeover, Secret Disclosure, and Full Instance Configuration Compromise

Severity:

CRITICAL RISK

(9.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Broken / Missing Access Control

CWE:

CWE-284;CWE-287

Impact:

Account Takeover, Secret Disclosure, and Full Instance Configuration Compromise

Severity:

CRITICAL RISK

(9.1)

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 Access Control on Onboarding Configuration Endpoint (CWE-284) in Hoppscotch Self-Hosted Instances

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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