OneUptime is Vulnerable to Privilege Escalation via Login Response Manipulation

高 8.2CVE-2025-66028 · GHSA-675q-66gf-gqg8 · 26/11/2025 公開 · 18/10/2026 更新

要点

CVE-2025-66028 は oneuptime (hackerbay), @oneuptime/common に影響する深刻度「高」 (CVSS 8.2) の脆弱性です。
今後30日間に悪用される確率（EPSS）：0.32%（全脆弱性の 25.4% より高い）。
対処：8.0.5567 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
oneuptime hackerbay	`< 8.0.5567`	`8.0.5567`
@oneuptime/common npm	`< 8.0.5567`	`8.0.5567`

概要

Summary

During the login process, the server response included a parameter called isMasterAdmin. By intercepting and modifying this parameter value from false to true, a user is able to gain access to the admin dashboard interface. However, despite accessing the admin panel, the user does not have sufficient permissions to view or interact with actual data.

PoC

Intercept the login response and change "isMasterAdmin": false → "isMasterAdmin": true <img width="1405" height="567" alt="image" src="https://github.com/user-attachments/assets/7036398b-bb41-46c1-b66a-e49ec2bc3abb" /> <img width="1533" height="476" alt="2" src="https://github.com/user-attachments/assets/4efcaef5-a939-4729-be43-3af62a7d02f8" />

Impact

The admin dashboard is viewable.

NVD の説明

OneUptime is a solution for monitoring and managing online services. Prior to version 8.0.5567, OneUptime is vulnerable to privilege escalation via Login Response Manipulation. During the login process, the server response included a parameter called isMasterAdmin. By intercepting and modifying this parameter value from false to true, it is possible to gain access to the admin dashboard interface. However, an attacker may be unable to view or interact with the data if they still do not have sufficient permissions. This issue has been patched in version 8.0.5567.