Deserialization of Untrusted DataWeakness · CWE-502

CVE-2025-60237

CRITICAL · 9.8 CVSS v3.1 Published 2026-03-19
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
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
Deserialization of Untrusted Data vulnerability in Themeton Finag allows Object Injection.This issue affects Finag: from n/a through 1.5.0.

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

Deserialization of Untrusted Data vulnerability in Themeton Finag theme allows PHP Object Injection. The vulnerability stems from unsafe use of deserialization on user-controlled data, potentially enabling remote code execution via crafted serialized objects.

MitigationUpdate Themeton Finag to a patched version beyond 1.5.0. If no update is available, disable the theme and replace with a secure alternative. Audit code for unserialize() calls on untrusted input and replace with safer methods like JSON parsing.

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
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. Confirm Themeton Finag installation
    Search the webroot for files containing 'Finag' or 'themeton' branding, or check for a theme/plugin named Finag in the CMS (WordPress/other) directory structure
    Affected if The application is Themeton Finag theme or plugin
  2. Locate insecure unserialize() calls
    Search the codebase for 'unserialize(' function calls, particularly in ajax handlers, form processors, or API endpoints. Use grep: grep -r "unserialize(" --include="*.php"
    Affected if Code contains unserialize() calls processing external input without validation
  3. Check if deserialization input is from user-controlled source
    Review the unserialize() calls found and trace whether the input comes from $_GET, $_POST, $_COOKIE, $_REQUEST, or HTTP headers without sanitization
    Affected if Unserialize receives data directly from superglobals or HTTP parameters
  4. Verify the vulnerable code path is exposed
    Check if the file containing unserialize() is accessible via direct HTTP request (not protected by authentication or nonce checks). Look at the file's includes/requires and execution flow.
    Affected if The deserialization code can be reached without authentication via web request
  5. Identify gadget chain potential
    Search for libraries known to contain gadget chains (e.g., Doctrine, Symfony, Monolog, Laravel, Guzzle) in vendor or dependencies. Check composer.json or plugin/theme dependencies.
    Affected if The application or its dependencies include libraries susceptible to PHP object injection gadget chains

The environment is affected if Themeton Finag is installed AND contains accessible unserialize() calls that process untrusted user input without validation.

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

Update Themeton Finag to a patched version beyond 1.5.0. If no update is available, disable the theme and replace with a secure alternative. Audit code for unserialize() calls on untrusted input and replace with safer methods like JSON parsing.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation12.0 h
  • Testing8.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,880
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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-2025-60237 in production — separate from our analysis above.

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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
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  • Version or environment caveats, and links to real fixes
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