Vulnerability · Published Nov 26, 2025 · Assigned by GitHub_M
CVE-2025-65966OneUptime Unauthorized User Creation via API
High 8.8
In plain English
A high-severity security flaw in oneuptime from OneUptime. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)8.8High
Exploit odds (30 days)0.3%top 73.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @oneuptime/common | 9.1.0 | GHSA-m449-vh5f-574g |
Affected products (as reported)
Weakness: CWE-285 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
References
- https://github.com/OneUptime/oneuptime/security/advisories/GHSA-m449-vh5f-574g x_refsource_CONFIRM