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Oneuptime CVE-2025-66028

MEDIUM
Improper Access Control (CWE-284)
2025-11-26 security-advisories@github.com
6.9
CVSS 4.0 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
6.9 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

4
Analysis Generated
Mar 28, 2026 - 19:24 vuln.today
Patch released
Mar 28, 2026 - 19:24 nvd
Patch available
PoC Detected
Dec 05, 2025 - 13:57 vuln.today
Public exploit code
CVE Published
Nov 26, 2025 - 19:15 nvd
MEDIUM 6.9

DescriptionGitHub Advisory

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.

AnalysisAI

OneUptime is a solution for monitoring and managing online services. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-284. 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. Affected products include: Hackerbay Oneuptime. Version information: version 8.0.5567.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

CVE-2026-27728 CRITICAL POC
9.9 Feb 25

OS command injection in OneUptime monitoring platform before 10.0.7. Authenticated users can execute arbitrary commands

CVE-2026-30957 CRITICAL POC
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OneUptime prior to 10.0.21 has a fourth vulnerability in Synthetic monitoring exposing dangerous functionality.

CVE-2026-27574 CRITICAL POC
9.9 Feb 21

Code injection in OneUptime monitoring via custom JS monitor using vm module. PoC and patch available.

CVE-2026-30887 CRITICAL POC
9.9 Mar 10

OneUptime monitoring platform prior to 10.0.18 allows code injection (CVSS 9.9) enabling RCE through the monitoring conf

CVE-2026-30956 CRITICAL POC
9.9 Mar 10

OneUptime prior to 10.0.21 has a third authorization bypass enabling low-privileged users to access admin functions.

CVE-2026-30921 CRITICAL POC
9.9 Mar 10

OneUptime prior to 10.0.20 exposes dangerous functionality in Synthetic monitoring that enables code execution.

CVE-2025-65966 HIGH POC
8.8 Nov 26

OneUptime is a solution for monitoring and managing online services. Rated high severity (CVSS 8.8), this vulnerability

CVE-2026-30920 HIGH POC
8.6 Mar 10

OneUptime versions prior to 10.0.19 allow unauthenticated attackers to hijack GitHub App integrations across projects by

CVE-2024-29194 HIGH POC
8.3 Mar 24

OneUptime is a solution for monitoring and managing online services. Rated high severity (CVSS 8.3), this vulnerability

CVE-2026-28787 HIGH POC
8.2 Mar 06

OneUptime versions 10.0.11 and earlier contain an improper WebAuthn implementation where server-side challenge validatio

CVE-2026-30958 HIGH POC
7.2 Mar 10

Unauthenticated path traversal in OneUptime versions before 10.0.21 allows remote attackers to read arbitrary files from

CVE-2026-32306 CRITICAL
9.9 Mar 13

SQL injection in OneUptime telemetry API before 10.0.23.

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CVE-2025-66028 vulnerability details – vuln.today

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