MAL-2025-3541
Vulnerability from ossf_malicious_packages
Published
2025-04-23 09:23
Modified
2025-04-23 09:23
Summary
Malicious code in express-cookie-parser (npm)
Details

This package impersonates the popular 'cookie-parser' package. Remote code execution, persistence, self-deletion, and obfuscation found in the package's code confirm its malicious nature.

Credits
Safedep safedep.io/
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "express-cookie-parser"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "SEMVER"
        }
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://safedep.io/"
      ],
      "name": "Safedep",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": null
  },
  "details": "This package impersonates the popular \u0027cookie-parser\u0027 package. Remote code execution, persistence, self-deletion, and obfuscation found in the package\u0027s code confirm its malicious nature.",
  "id": "MAL-2025-3541",
  "modified": "2025-04-23T09:23:53Z",
  "published": "2025-04-23T09:23:53Z",
  "schema_version": "1.5.0",
  "summary": "Malicious code in express-cookie-parser (npm)"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.