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CVE-2025-66028

OneUptime is Vulnerable to Privilege Escalation via Login Response Manipulation

Published: Nov 26, 2025Updated: Dec 5, 2025 Sources: CVE List NVD GHSACWE-284
NVD MITRE
8.2CVSSHIGH
EPSS Score
0.3%
Top 83.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-284

Affected Products

oneuptimeOneUptime
Mixed
Enterprise Software / itsm-monitoring
@oneuptime/commonnpmOSS Libraries
oneuptimehackerbay
SaaS
Enterprise Software / itsm-monitoring
oneuptimecommercialEnterprise Softwareaka oneuptime.com
npmpackage-ecosystemOSS Libraries
hackerbaycommercialEnterprise Softwareaka oneuptime

Exploitability

Official Patch Available

References

https://github.com/OneUptime/oneuptime/security/advisories/GHSA-675q-66gf-gqg8
github.com
https://github.com/OneUptime/oneuptime/commit/3e72b2a9a4f50f98cf1f6cf13fa3e405715bb370
github.com
https://nvd.nist.gov/vuln/detail/CVE-2025-66028
nvd.nist.gov
and 1 more references View all →

Timeline

Published
Nov 26, 2025
Last Updated
Dec 5, 2025

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