dbcve.org
InjectionWeakness · CWE-74

CVE-2025-12266

MEDIUM · 6.3 CVSS v3.1 Published 2025-10-27
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
69/100
Remediation priority · Elevated
Remotely reachable 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 detected in Zytec Dalian Zhuoyun Technology Central Authentication Service up to 20251009. This vulnerability affects the function _empty of the file /index.php/auth/widget. Performing manipulation of the argument get.layer/get.widget/get.action results in code injection. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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 · high confidence

Code injection vulnerability in Zytec Dalian Zhuoyun Technology Central Authentication Service allows remote attackers to inject arbitrary code via the _empty magic method in /index.php/auth/widget by manipulating GET parameters (get.layer, get.widget, get.action). The _empty method is called when accessing undefined methods, and improper input handling allows injection of malicious code.

MitigationImplement strict input validation and sanitization on all GET parameters, particularly layer/widget/action. Consider deploying a WAF rule to block suspicious requests to /index.php/auth/widget until vendor provides official patch. If possible, disable the _empty magic method or refactor the authentication service to use explicit method routing instead of dynamic method calls.

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:L/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. Confirm the application is Zytec Dalian Zhuoyun Central Authentication Service
    Check the web application banner, headers, or source code for references to Zytec, Dalian Zhuoyun, or Central Authentication Service. Look for /index.php/auth/widget endpoint in the application structure.
    Affected if The application is the Zytec Dalian Zhuoyun Technology Central Authentication Service
  2. Verify the vulnerable endpoint exists
    Check if the path /index.php/auth/widget is accessible on the web server. This is the specific endpoint where the _empty magic method can be triggered.
    Affected if The /index.php/auth/widget endpoint exists and responds to requests
  3. Confirm GET parameters are processed without sanitization
    Test if the application accepts get.layer, get.widget, or get.action parameters on the /index.php/auth/widget endpoint. These parameters trigger the _empty method when non-existent method names are passed.
    Affected if The application accepts layer, widget, or action GET parameters on this endpoint without strict validation
  4. Identify if _empty magic method is implemented
    Locate and examine the PHP class containing the _empty magic method, typically in the authentication controller. The _empty method is invoked when undefined methods are called.
    Affected if The _empty magic method exists in the authentication class and processes user-supplied input without proper sanitization
  5. Check for indicators of exploitation attempts
    Review web server access logs for requests to /index.php/auth/widget with unusual values in layer, widget, or action parameters. Look for patterns suggesting code injection attempts.
    Affected if Logs show requests with suspicious parameter values that may indicate exploitation attempts

A user is affected if they run the Zytec Dalian Zhuoyun Central Authentication Service with the /index.php/auth/widget endpoint exposed and the _empty magic method handling unsanitized GET parameters.

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 strict input validation and sanitization on all GET parameters, particularly layer/widget/action. Consider deploying a WAF rule to block suspicious requests to /index.php/auth/widget until vendor provides official patch. If possible, disable the _empty magic method or refactor the authentication service to use explicit method routing instead of dynamic method calls.

Have this fixed Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing8.0 h
  • Review / QA4.0 h
36.0 hours of engineering $6,400
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $10,240.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-12266 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

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-2025-12266 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data