Is CVE-2025-66028 actively exploited?

CVE-2025-66028 has no public evidence of in-the-wild exploitation as of 2025-12-05.

What is the CVSS score for CVE-2025-66028?

CVE-2025-66028 has a CVSS score of 6.9 (MEDIUM severity). Vector: 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.

How do I patch CVE-2025-66028?

Patch guidance is available from hackerbay security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-66028.

Which products are affected by CVE-2025-66028?

1 product: hackerbay oneuptime.

CVE-2025-66028 - remediation guidance & executive summary

Description

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.

CVSS Metrics

Vector: 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
Complexity: low
Privileges: none
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-284

Metadata

Primary Vendor: HACKERBAY
Published: 11/26/2025
Last Modified: 12/5/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

hackerbay : oneuptime

Remediation Guidance

Executive Summary

Cite this page

CVE-2025-66028. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2025-66028

View on NIST NVD

CVE-2025-66028 vulnerability