GHSA-3fc5-9x9m-vqc4: Duplicate Advisory Privilege Escalation Vulnerability

CRITICAL
Share
CVSS 9.8
Published
Advisory Summary

GHSA-3fc5-9x9m-vqc4 is a CRITICAL (CVSS 9.8) privilege escalation vulnerability (General Security Weakness) affecting Duplicate Advisory libraries in the npm ecosystem. The issue involves privilege escalation in express-cart. Remediation is available by upgrading affected packages to version 1.1.6.

GHSA-3fc5-9x9m-vqc4 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-3fc5-9x9m-vqc4
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification General Security Weakness
Affected Product Duplicate Advisory
Package Ecosystem npm
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:3.1/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 GHSA-3fc5-9x9m-vqc4

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

express-cart fixed: 1.1.6 
npm install express-cart@1.1.6
Verify Direct and Transitive Dependencies

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

npm ls express-cart

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-3fc5-9x9m-vqc4, inspect your project dependencies using npm:

npm ls express-cart

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.1.6), your application is affected.

Note: The npm ls express-cart command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Duplicate Advisory, 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

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-hr89-w7p6-pjmq. This link is maintained to preserve external references. ## Original Description Versions of `express-cart` before 1.1.6 are vulnerable to privilege escalation. This vulnerability can be exploited so that normal users can escalate their privilege and add new administrator users. ## Recommendation Update to version 1.1.6 or later.

GHSA-3fc5-9x9m-vqc4 Affected Duplicate Advisory Versions

1 component(s)
Fixed Versions:
1.1.6
Product / Package Ecosystem Affected Versions Fixed Version
express-cart
npm/express-cart
npm
< 1.1.6
1.1.6

References

Security Fix Commit FIX COMMIT
https://github.com/mrvautin/expressCart/commit/baccaae9b0b72f00b10c5453ca00231340ad3e3b
hackerone.com/reports/343626 WEB
https://hackerone.com/reports/343626
Duplicate Advisory Source Repository REPOSITORY
https://github.com/nodejs/security-wg/blob/master/vuln/npm/469.json
snyk.io/vuln/npm:express-ca... WEB
https://snyk.io/vuln/npm:express-cart:20180712
www.npmjs.com/advisories/730 WEB
https://www.npmjs.com/advisories/730

Frequently Asked Questions

What is GHSA-3fc5-9x9m-vqc4?
GHSA-3fc5-9x9m-vqc4 is a security vulnerability in Duplicate Advisory involving Privilege Escalation in express-cart under General Security Weakness.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 1.1.6 across affected packages: express-cart.
What version fixes GHSA-3fc5-9x9m-vqc4?
Upgrading to 1.1.6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is express-cart affected?
Yes, express-cart is affected in releases prior to 1.1.6. Upgrade your dependency to 1.1.6 or later.
What is the CVSS score of GHSA-3fc5-9x9m-vqc4?
GHSA-3fc5-9x9m-vqc4 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with GHSA-3fc5-9x9m-vqc4?
GHSA-3fc5-9x9m-vqc4 is classified under General Security Weakness.
How can I check npm dependencies for GHSA-3fc5-9x9m-vqc4?
Run the dependency tree command: 'npm ls express-cart'. 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-3fc5-9x9m-vqc4",
  "modified" : "2026-02-03T19:36:21Z",
  "published" : "2019-06-03T17:31:32Z",
  "withdrawn" : "2026-02-03T19:36:21Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: Privilege Escalation in express-cart",
  "details" : "## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-hr89-w7p6-pjmq. This link is maintained to preserve external references.\n\n## Original Description\nVersions of `express-cart` before 1.1.6 are vulnerable to privilege escalation. This vulnerability can be exploited so that normal users can escalate their privilege and add new administrator users.\n\n\n## Recommendation\n\nUpdate to version 1.1.6 or later.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "express-cart"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.1.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/mrvautin/expressCart/commit/baccaae9b0b72f00b10c5453ca00231340ad3e3b"
  }, {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/343626"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nodejs/security-wg/blob/master/vuln/npm/469.json"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/npm:express-cart:20180712"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/730"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2019-06-03T17:30:55Z",
    "nvd_published_at" : null
  }
}