WmproApplication · Sun.net

CVE-2025-15226

CRITICAL · 9.8 CVSS v3.1 Published 2025-12-29
Fix available
A fix is available. Upgrade to after 5.2 or later.
See remediation →
100/100
Remediation priority · Urgent
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
WMPro developed by Sunnet has a Arbitrary File Upload vulnerability, allowing unauthenticated remote attackers to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

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

WMPro by Sunnet contains an arbitrary file upload vulnerability allowing unauthenticated remote attackers to upload malicious files (web shells) to the server, achieving arbitrary code execution.

MitigationDisable or restrict the file upload functionality until a patch is available. If upload functionality is required, implement strict allowlist-based file extension validation, MIME-type verification, content inspection, filename sanitization, store files outside the web root, and ensure uploaded files have no execute permissions.

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

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
WmproApplication
Affected:>= 5.0, <= 5.2

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
High
Integrity
High
Availability
High

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

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 WMPro version
    Locate the WMPro installation and check its version information. This is typically found in the application itself, in an about page, configuration file, or the main executable/library files. Compare the installed version number against the affected range: 5.0 through 5.2 inclusive.
    Affected if The installed version is 5.0, 5.1, or 5.2
  2. Confirm file upload feature is accessible
    Identify whether the file upload functionality is enabled and exposed. This typically involves checking if upload-related endpoints (often containing terms like 'upload', 'file', or 'attach' in the URL path) are accessible on the web server hosting WMPro.
    Affected if The file upload endpoint is reachable without requiring authentication or special privileges
  3. Check for unauthorized uploaded files
    Inspect directories where uploaded files are stored (commonly within the web root or application data directories). Look for suspicious file types such as .php, .asp, .jsp, .exe, or other executable extensions that should not be present.
    Affected if Unexpected script or executable files exist in upload directories, especially if they were not intentionally placed there by administrators
  4. Verify upload restrictions are disabled or weak
    Review application configuration or access logs to determine if any restrictions on file uploads are in place. Check for lack of file extension allowlisting, MIME-type validation, or content inspection on upload requests.
    Affected if No file type restrictions, extension validation, or content validation is enforced on the upload functionality

You are affected if WMPro version 5.0-5.2 is installed and the unauthenticated file upload feature is exposed and accessible without restrictions.

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
Upgrade available Upgrade to a release after 5.2
Interim mitigation

Disable or restrict the file upload functionality until a patch is available. If upload functionality is required, implement strict allowlist-based file extension validation, MIME-type verification, content inspection, filename sanitization, store files outside the web root, and ensure uploaded files have no execute permissions.

Fix this in Wmpro Scoped from the published advisory
  • Consultation4.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA3.0 h
25.0 hours of engineering $4,400
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,040.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-15226 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

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-2025-15226 in production — separate from our analysis above.

No notes yet

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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