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Unauthorized User Creation via API

High
simlarsen published GHSA-m449-vh5f-574g Nov 26, 2025

Package

OneUptime

Affected versions

9.0.5598

Patched versions

9.1.0

Description

Summary

A low-permission user can create new accounts through a direct API request instead of being restricted to the intended interface.

PoC

A low-permission user sends a crafted API request to the user-creation endpoint and the system creates the account successfully.
WhatsApp Image 2025-11-23 at 14 27 32_0e0f5889

Impact

This allows attackers to create unauthorized accounts

Severity

High

CVE ID

CVE-2025-65966

Weaknesses

Improper Authorization

The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Learn more on MITRE.

Credits