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CVE-2025-65966

Hackerbay Oneuptime broken access control

8.1 HIGHPublic exploitEPSS 0.31%
  1. Published26 Nov 2025

Description

OneUptime is a solution for monitoring and managing online services. In version 9.0.5598, a low-permission user can create new accounts through a direct API request instead of being restricted to the intended interface. This issue has been patched in version 9.1.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected products

Hackerbay Oneuptime9.0.5598

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2025-65966 being actively exploited?

CVE-2025-65966 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.31%.

How severe is CVE-2025-65966?

CVE-2025-65966 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 0.31% probability of exploitation.

Which products are affected by CVE-2025-65966?

Affected products include Hackerbay Oneuptime.

How do I fix CVE-2025-65966?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.