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Incorrect Privilege AssignmentWeakness · CWE-266

CVE-2025-5522

HIGH · 7.3 CVSS v3.1 Published 2025-06-03
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
82/100
Remediation priority · High
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A vulnerability was found in jack0240 魏 bskms 蓝天幼儿园管理系统 up to dffe6640b5b54d8e29da6f060e0493fea74b3fad. It has been rated as critical. Affected by this issue is some unknown functionality of the file /sa/addUser of the component User Creation Handler. The manipulation leads to improper authorization. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Improper authorization vulnerability in the /sa/addUser endpoint of the 蓝天幼儿园管理系统 (Blue Sky Kindergarten Management System). The user creation handler lacks proper authorization checks, allowing unauthenticated or unauthorized remote attackers to create user accounts, potentially with administrative privileges.

MitigationImplement role-based authorization checks on the /sa/addUser endpoint to verify the requesting user has appropriate permissions before allowing user creation. Apply authentication requirements if not already present.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if the Blue Sky Kindergarten Management System is deployed
    Locate the web application server hosting the 蓝天幼儿园管理系统 and note its base URL. Check running processes or web server logs for references to '蓝天幼儿园' or 'Blue Sky Kindergarten'.
    Affected if The system is running and accessible on the network
  2. Confirm the /sa/addUser endpoint exists
    Access the application's web interface and navigate to or send a request to the /sa/addUser path (e.g., GET https://<host>/sa/addUser or POST to the same endpoint). Observe if the endpoint responds or returns any user creation form.
    Affected if The endpoint responds (returns any HTTP status other than 404) indicating the vulnerable endpoint is present
  3. Test if authentication is required for user creation
    Send a POST request to /sa/addUser with a test payload (e.g., username=testuser&password=testpass) WITHOUT including any session cookies, authentication tokens, or credentials. Observe the HTTP response.
    Affected if The request succeeds and returns a success message or creates a user without requiring any authentication credentials
  4. Verify if admin privileges can be obtained
    If user creation succeeds, examine whether the created account has elevated privileges or check if the addUser endpoint accepts a role/privilege parameter (such as isAdmin, role, or level) that can grant administrative access.
    Affected if The endpoint accepts parameters that allow creating accounts with administrative or elevated privileges without authorization checks
  5. Check application logs for unauthorized user creation attempts
    Review application logs, access logs, or audit trails for entries indicating user creation events from unexpected IP addresses or unauthenticated sessions.
    Affected if Logs show user creation events originating from unauthenticated requests or unknown sources

If the /sa/addUser endpoint is accessible and allows creating user accounts (especially administrative ones) without requiring valid authentication credentials, the environment is affected by this vulnerability.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement role-based authorization checks on the /sa/addUser endpoint to verify the requesting user has appropriate permissions before allowing user creation. Apply authentication requirements if not already present.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-5522 in production — separate from our analysis above.

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What this is

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