CVE-2025-66028: @oneuptime/common OneUptime Is Vulnerable To Privilege Vulnerability

MODERATE
Advisory Identifier: GHSA-675q-66gf-gqg8
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CWE-284 CWE-863
Published
Advisory Summary

CVE-2025-66028 is a MODERATE oneuptime is vulnerable to privilege vulnerability (CWE-284: Improper Access Control) affecting @oneuptime/common libraries in the npm ecosystem. The issue involves oneuptime is vulnerable to privilege escalation via login response manipulation. Remediation is available by upgrading affected packages to version 8.0.5567.

CVE-2025-66028 at a Glance

CVE Identifier CVE-2025-66028
GHSA Identifier GHSA-675q-66gf-gqg8
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-284: Improper Access Control
Affected Product @oneuptime/common
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2025-66028

To remediate this vulnerability, upgrade all affected @oneuptime/common dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

@oneuptime/common fixed: 8.0.5567 
npm install @oneuptime/common@8.0.5567
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls @oneuptime/common

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2025-66028, inspect your project dependencies using npm:

npm ls @oneuptime/common

Analyze the terminal output to locate any version of @oneuptime/common in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.0.5567), your application is affected.

Note: The npm ls @oneuptime/common command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-284: Improper Access Control, where the product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. In @oneuptime/common, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Summary During the login process, the server response included a parameter called isMasterAdmin. By intercepting and modifying this parameter value from false to true, a user is able to gain access to the admin dashboard interface. However, despite accessing the admin panel, the user does not have sufficient permissions to view or interact with actual data. ### PoC Intercept the login response and change "isMasterAdmin": false → "isMasterAdmin": true <img width="1405" height="567" alt="image" src="https://github.com/user-attachments/assets/7036398b-bb41-46c1-b66a-e49ec2bc3abb" /> <img width="1533" height="476" alt="2" src="https://github.com/user-attachments/assets/4efcaef5-a939-4729-be43-3af62a7d02f8" /> ### Impact The admin dashboard is viewable.

CVE-2025-66028 Affected @oneuptime/common Versions

1 component(s)
Fixed Versions:
8.0.5567
Product / Package Ecosystem Affected Versions Fixed Version
@oneuptime/common
npm/@oneuptime/common
npm
< 8.0.5567
8.0.5567

References

GitHub Advisory / Wiki ADVISORY
https://github.com/OneUptime/oneuptime/security/advisories/GHSA-675q-66gf-gqg8
NVD — CVE-2025-66028 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-66028
Security Fix Commit FIX COMMIT
https://github.com/OneUptime/oneuptime/commit/3e72b2a9a4f50f98cf1f6cf13fa3e405715bb370
@oneuptime/common Source Repository REPOSITORY
https://github.com/OneUptime/oneuptime

Frequently Asked Questions

What is CVE-2025-66028?
CVE-2025-66028 is a security vulnerability in @oneuptime/common involving OneUptime is Vulnerable to Privilege Escalation via Login Response Manipulation under CWE-284: Improper Access Control.
Which @oneuptime/common versions are affected?
Affected versions include releases prior to 8.0.5567 across affected packages: @oneuptime/common.
What version fixes CVE-2025-66028?
Upgrading to 8.0.5567 (or the latest patched release for your respective branch) resolves the vulnerability.
Is @oneuptime/common affected?
Yes, @oneuptime/common is affected in releases prior to 8.0.5567. Upgrade your dependency to 8.0.5567 or later.
What CWE is associated with CVE-2025-66028?
CVE-2025-66028 is classified under CWE-284: Improper Access Control (The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.).
How can I check npm dependencies for CVE-2025-66028?
Run the dependency tree command: 'npm ls @oneuptime/common'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-675q-66gf-gqg8",
  "modified" : "2025-11-27T09:01:20Z",
  "published" : "2025-11-25T22:55:50Z",
  "aliases" : [ "CVE-2025-66028" ],
  "summary" : "OneUptime is Vulnerable to Privilege Escalation via Login Response Manipulation ",
  "details" : "### Summary\n\nDuring the login process, the server response included a parameter called isMasterAdmin. By intercepting and modifying this parameter value from false to true, a user is able to gain access to the admin dashboard interface.  However, despite accessing the admin panel, the user does not have sufficient permissions to view or interact with actual data. \n\n\n### PoC\nIntercept the login response and change \"isMasterAdmin\": false → \"isMasterAdmin\": true \n<img width=\"1405\" height=\"567\" alt=\"image\" src=\"https://github.com/user-attachments/assets/7036398b-bb41-46c1-b66a-e49ec2bc3abb\" />\n<img width=\"1533\" height=\"476\" alt=\"2\" src=\"https://github.com/user-attachments/assets/4efcaef5-a939-4729-be43-3af62a7d02f8\" />\n\n\n### Impact\nThe admin dashboard is viewable.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@oneuptime/common"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "8.0.5567"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/OneUptime/oneuptime/security/advisories/GHSA-675q-66gf-gqg8"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-66028"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/OneUptime/oneuptime/commit/3e72b2a9a4f50f98cf1f6cf13fa3e405715bb370"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/OneUptime/oneuptime"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-284", "CWE-863" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-11-25T22:55:50Z",
    "nvd_published_at" : "2025-11-26T19:15:52Z"
  }
}