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

CVE-2026-24635

HIGH · 7.5 CVSS v3.1 Published 2026-01-23
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
81/100
Remediation priority · High
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
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in DevsBlink EduBlink Core edublink-core allows PHP Local File Inclusion.This issue affects EduBlink Core: from n/a through <= 2.0.7.

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 Local File Inclusion (LFI) vulnerability in EduBlink Core PHP code allows attackers to manipulate filename parameters in include/require statements to access arbitrary files on the server, potentially revealing sensitive configuration files, source code, or enabling remote code execution via injection of malicious input.

MitigationImplement strict input validation and whitelisting for file inclusion paths, use basename() to strip directory traversal sequences, and avoid passing user input directly to include/require statements. Upgrade to a 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
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:L/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 EduBlink Core installation
    Locate the application root directory and identify if it is the EduBlink Core PHP application. Check for characteristic files such as index.php, configuration files, or the presence of an 'include' or 'require' directory structure typical to this codebase.
    Affected if The system is running EduBlink Core PHP application.
  2. Identify PHP include/require usage
    Search the codebase for include, require, include_once, or require_once statements that accept variable filenames. Use grep or similar tools: grep -r 'include\|require' --include='*.php' .
    Affected if Dynamic file inclusion using variables is present in the PHP code.
  3. Trace user input to file inclusion
    Review the code flow from user-controllable input (GET, POST, COOKIE parameters) to the include/require statements identified in the previous step. Look for parameters that might control which file gets included.
    Affected if User-supplied input directly or indirectly reaches the filename parameter of include/require without sanitization.
  4. Check for input validation
    Examine the code around the file inclusion to determine if basename(), pathinfo(), or other sanitization functions are used, and whether allowlist validation exists for included files.
    Affected if No input validation or allowlisting is implemented on the filename parameter before inclusion.
  5. Review server logs for traversal attempts
    Inspect web server access logs for patterns like '../' or null byte injection in requests that may target file inclusion endpoints.
    Affected if Log analysis reveals unauthenticated requests with directory traversal sequences targeting PHP inclusion points.

The environment is affected if EduBlink Core PHP is running and user input can reach include/require statements without sanitization, allowing manipulation of filenames to access arbitrary files.

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 whitelisting for file inclusion paths, use basename() to strip directory traversal sequences, and avoid passing user input directly to include/require statements. Upgrade to a patched version if available.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA3.0 h
16.0 hours of engineering $2,820
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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-2026-24635 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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