MAL-2026-13431

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@itsreduxtm/unpkg-xss-test/MAL-2026-13431.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13431
Published
2026-08-06T16:43:39Z
Modified
2026-08-06T23:50:00.792974968Z
Summary
Malicious code in @itsreduxtm/unpkg-xss-test (npm)
Details

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

Source: amazon-inspector (39614132e3675ec887b41aa6834ac54cce90e248d43f008345444b86e1870d82)

payload.js is declared as the package main and runs an IIFE immediately on require/import. It fetches a wordlist of Linux binary names from https://unpkg.com/@itsreduxtm/unpkg-xss-test@1.0.4/binlist.txt and issues concurrent HEAD requests to https://entretienextremejb.ca/bin/<name> for each entry, sourcing the traffic from the installer's machine and IP address. The package name (unpkg-xss-test) and GTFOBins-style wordlist shape indicate this is a browser XSS-delivered path-enumeration payload; when loaded in Node (fetch is global in Node 18+), the installer conducts the scan against a third party. This covertly weaponizes the installer's identity for reconnaissance against an unrelated site, exposing the installer to abuse reports, IP blocklisting, and potential legal complaints for unauthorized scanning.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-016714",
            "import_time": "2026-08-06T18:09:09.995613818Z",
            "sha256": "39614132e3675ec887b41aa6834ac54cce90e248d43f008345444b86e1870d82",
            "modified_time": "2026-08-06T16:43:39Z",
            "source": "amazon-inspector",
            "versions": [
                "1.0.5"
            ]
        },
        {
            "id": "IN-MAL-2026-016715",
            "import_time": "2026-08-06T18:09:10.156475393Z",
            "sha256": "881fa2a2e636c13d5a32eb54201d9345d1906d2a2b11360f2789c31f189f28ec",
            "versions": [
                "1.0.9"
            ],
            "source": "amazon-inspector",
            "modified_time": "2026-08-06T16:43:49Z"
        }
    ]
}
References
Credits

Affected packages

npm / @itsreduxtm/unpkg-xss-test

Package

Name
@itsreduxtm/unpkg-xss-test
View open source insights on deps.dev
Purl
pkg:npm/%40itsreduxtm/unpkg-xss-test

Affected ranges

Affected versions

1.*
1.0.5
1.0.9

Database specific

cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    },
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "payload.js",
            "tlsh": "7f51450608bf222baaa331d65b5f20157131c1077645ce8cba9ec3058f55aadd877bee",
            "sha256": "dfff3ce3112f348184e76fe1dfa839bda1daa32104fdd72f8f9a2797b9fcbacd"
        }
    ],
    "package_integrity": [
        {
            "filename": "unpkg-xss-test-1.0.5.tgz",
            "hashes": {
                "sha1": "a42b32164eac33d8857b681b3c1d196e0c6099ea",
                "sha512_sri": "sha512-IytC32aIYQuSIkBzRkRkhSpyxAdhvpByYo715eHHi+vb/kNIIqdLM1vZ5ENAFvC4CCpOpcN6o2+Z3FeT7kTNIQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@itsreduxtm/unpkg-xss-test/MAL-2026-13431.json"