PHP File Inclusion (RFI/LFI)Weakness · CWE-98

CVE-2025-53436

HIGH · 8.1 CVSS v3.1 Published 2025-12-18
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
90/100
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
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in BZOTheme Monki monki allows PHP Local File Inclusion.This issue affects Monki: from n/a through <= 2.0.5.

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

BZOTheme Monki through version 2.0.5 contains a PHP Local File Inclusion (LFI) vulnerability where user-supplied input is improperly validated before being used in include/require statements. This allows attackers to manipulate file paths and potentially execute arbitrary PHP code on the server.

MitigationImplement strict whitelist-based input validation for file inclusion paths, use basename() and realpath() to normalize and validate requested paths, and ensure allow_url_include is disabled. Upgrade to the latest patched version if available.

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
High
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/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 if BZOTheme Monki is installed
    Search your web server document root for files containing 'Monki' theme or BZOTheme branding. Look for directories named 'monki', 'bzotheme', or files containing 'BZOTheme' or 'Monki' in the filename.
    Affected if BZOTheme Monki theme files are found on the server
  2. Determine the installed version
    Check for a version file, changelog, or readme.txt within the Monki theme directory. Common locations include version.php, info.xml, or a readme/readme.txt file in the theme root.
    Affected if The installed version is 2.0.5 or lower (any version up to and including 2.0.5)
  3. Locate file inclusion code
    Search the Monki theme source code for PHP include, require, include_once, or require_once statements. Focus on those using variables or request parameters in the file path.
    Affected if The code uses variables or user input directly in include/require statements without validation
  4. Inspect input handling for file paths
    Examine how user-supplied parameters (GET, POST, COOKIE) are used in file inclusion functions. Look for patterns like include($_GET['page']) or require($file).
    Affected if User-controlled input flows directly to include/require without sanitization like basename() or realpath()
  5. Check PHP configuration
    Review the php.ini setting for allow_url_include. It should be set to Off.
    Affected if allow_url_include is enabled (On)

You are affected if BZOTheme Monki version 2.0.5 or lower is installed AND the application uses user input in file inclusion paths without proper 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

Implement strict whitelist-based input validation for file inclusion paths, use basename() and realpath() to normalize and validate requested paths, and ensure allow_url_include is disabled. Upgrade to the latest patched version if available.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA3.0 h
19.0 hours of engineering $3,380
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Scan for this in your stack

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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-2025-53436 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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