CVE-2018-9209: Fineuploader/php traditional server FineUploader Php-traditional-server Unauthenticated Arbitrary File Vulnerability

CRITICAL
Advisory Identifier: GHSA-j78w-6r73-22vh
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CVSS 9.8
CWE-434
Published
Advisory Summary

CVE-2018-9209 is a CRITICAL (CVSS 9.8) fineuploader php-traditional-server unauthenticated arbitrary file vulnerability (CWE-434: Unrestricted Upload of File with Dangerous Type) affecting Fineuploader/php traditional server libraries in the Packagist ecosystem. The issue involves fineuploader php-traditional-server unauthenticated arbitrary file upload vulnerability. Remediation is available in the latest vendor maintenance releases.

CVE-2018-9209 at a Glance

CVE Identifier CVE-2018-9209
GHSA Identifier GHSA-j78w-6r73-22vh
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-434: Unrestricted Upload of File with Dangerous Type
Affected Product Fineuploader/php traditional server
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2018-9209

To remediate this vulnerability, upgrade all affected Fineuploader/php traditional server dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

fineuploader/php-traditional-server fixed: Latest secure release 
Upgrade fineuploader/php-traditional-server to Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for fineuploader/php-traditional-server

How to Check if You Are Affected

To determine whether your application is affected by CVE-2018-9209, inspect your project dependencies for Fineuploader/php traditional server:

inspect dependencies for fineuploader/php-traditional-server

Analyze the terminal output to locate any version of Fineuploader/php traditional server in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-434: Unrestricted Upload of File with Dangerous Type, where the product allows the upload or transfer of dangerous file types that are automatically processed within its environment. In Fineuploader/php traditional server, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Unauthenticated arbitrary file upload vulnerability in FineUploader php-traditional-server <= v1.2.2

CVE-2018-9209 Affected Fineuploader/php traditional server Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
fineuploader/php-traditional-server
 Packagist
≤ 1.2.2

References

NVD — CVE-2018-9209 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-9209
Fineuploader/php traditional server Source Repository REPOSITORY
https://github.com/FineUploader/php-traditional-server
www.vapidlabs.com/advisory.php WEB
http://www.vapidlabs.com/advisory.php?v=208

Frequently Asked Questions

What is CVE-2018-9209?
CVE-2018-9209 is a security vulnerability in Fineuploader/php traditional server involving FineUploader php-traditional-server unauthenticated arbitrary file upload vulnerability under CWE-434: Unrestricted Upload of File with Dangerous Type.
Which Fineuploader/php traditional server versions are affected?
Affected versions include releases prior to current release patches across affected packages: fineuploader/php-traditional-server.
What version fixes CVE-2018-9209?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is fineuploader/php-traditional-server affected?
Yes, fineuploader/php-traditional-server is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2018-9209?
CVE-2018-9209 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2018-9209?
CVE-2018-9209 is classified under CWE-434: Unrestricted Upload of File with Dangerous Type (The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.).
How can I check Packagist dependencies for CVE-2018-9209?
Run the dependency tree command: 'inspect dependencies for fineuploader/php-traditional-server'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-j78w-6r73-22vh",
  "modified" : "2024-04-24T22:42:00Z",
  "published" : "2022-05-14T01:48:06Z",
  "aliases" : [ "CVE-2018-9209" ],
  "summary" : "FineUploader php-traditional-server unauthenticated arbitrary file upload vulnerability",
  "details" : "Unauthenticated arbitrary file upload vulnerability in FineUploader php-traditional-server <= v1.2.2",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "fineuploader/php-traditional-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.2.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-9209"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/FineUploader/php-traditional-server"
  }, {
    "type" : "WEB",
    "url" : "http://www.vapidlabs.com/advisory.php?v=208"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-434" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-24T22:42:00Z",
    "nvd_published_at" : "2018-11-19T18:29:00Z"
  }
}