Access Control Flaw in OneUptime Affects User Account Creation
CVE-2025-65966

8.8HIGH

Key Information:

Vendor

Oneuptime

Status
Oneuptime
Vendor
CVE Published:
26 November 2025

What is CVE-2025-65966?

A security vulnerability in OneUptime version 9.0.5598 allows low-permission users to create new accounts via direct API requests. This bypasses the intended user interface and poses a risk to the integrity of user management within the system. The issue has been addressed in version 9.1.0, enhancing the security measures to prevent unauthorized account access.

Affected Version(s)

oneuptime = 9.0.5598

References

https://github.com/OneUptime/oneuptime/security/advisorie...
x_refsource_CONFIRM

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.