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

CVE-2025-49894

HIGH · 8.1 CVSS v3.1 Published 2025-08-20
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 uxper Nuss nuss allows PHP Local File Inclusion.This issue affects Nuss: from n/a through <= 1.3.3.

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

A PHP Local File Inclusion vulnerability exists in Nuss versions up to 1.3.3 where include/require statements do not properly validate user-controlled input, allowing attackers to include arbitrary files from the server filesystem.

MitigationApply input validation using basename() and whitelist filtering on file inclusion paths; update to patched version if available; consider disabling allow_url_fopen/allow_url_include.

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. Locate Nuss installation and determine version
    Search for Nuss PHP files (index.php, config files) and check version.php or VERSION file for version number. Compare against affected range: versions up to and including 1.3.3
    Affected if Installed Nuss version is 1.3.3 or lower
  2. Identify include/require statements in source code
    Search PHP source files for include(), require(), include_once(), or require_once() statements that use variables in the path parameter (e.g., include($file))
    Affected if Code contains dynamic include/require statements using unsanitized user input
  3. Verify user input reaches file inclusion functions
    Trace the data flow from request parameters (GET/POST) to the include/require statements found. Check if parameters like 'page', 'file', 'path', or similar are passed directly to include without validation
    Affected if User-supplied input from HTTP requests is used in include/require statements without basename() or whitelist filtering
  4. Test if arbitrary file inclusion is possible
    Send HTTP requests with manipulated parameters (e.g., ?file=../../../../etc/passwd) to endpoints using include/require to see if local files can be included
    Affected if The application returns content from arbitrary files outside the intended directory
  5. Check PHP configuration for remote inclusion risk
    Inspect php.ini for allow_url_fopen=On and allow_url_include=On settings which would allow remote file inclusion in addition to local
    Affected if allow_url_fopen or allow_url_include are enabled, increasing exploit severity

You are affected if running Nuss version 1.3.3 or lower AND your application uses include/require with user-controlled input that is not validated via basename() or whitelist filtering.

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

Apply input validation using basename() and whitelist filtering on file inclusion paths; update to patched version if available; consider disabling allow_url_fopen/allow_url_include.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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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-2025-49894 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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