MAL-2025-39904
Vulnerability from ossf_malicious_packages
Published
2025-08-14 18:52
Modified
2025-10-30 06:50
Summary
Malicious code in xo-jquery-mask-plugin (npm)
Details

The package xo-jquery-mask-plugin was found to contain malicious code.

-= Per source details. Do not edit below this line.=-

Source: google-open-source-security (f59460b8ba9281b320efd1888070928d3c31f86dd0770c7fe38d1f2eecc1e66b)

This package installs a dependency hosted on a custom domain that runs an info stealer during installation. The info stealer focuses on stealing npm, git, and other CI/CD related tokens.

Credits
Amazon Inspector actran@amazon.com
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "xo-jquery-mask-plugin"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": [
        "88.8.9"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "actran@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "import_time": "2025-10-30T03:28:39.180238Z",
        "modified_time": "2025-10-30T03:28:23Z",
        "sha256": "f59460b8ba9281b320efd1888070928d3c31f86dd0770c7fe38d1f2eecc1e66b",
        "source": "google-open-source-security",
        "versions": [
          "88.8.9"
        ]
      }
    ]
  },
  "details": "The package xo-jquery-mask-plugin was found to contain malicious code.\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: google-open-source-security (f59460b8ba9281b320efd1888070928d3c31f86dd0770c7fe38d1f2eecc1e66b)\nThis package installs a dependency hosted on a custom domain that runs an\ninfo stealer during installation. The info stealer focuses on stealing\nnpm, git, and other CI/CD related tokens.\n",
  "id": "MAL-2025-39904",
  "modified": "2025-10-30T06:50:52Z",
  "published": "2025-08-14T18:52:04Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://www.koi.ai/blog/phantomraven-npm-malware-hidden-in-invisible-dependencies"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "Malicious code in xo-jquery-mask-plugin (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.