mal-2026-6571
Vulnerability from ossf_malicious_packages
Published
2026-06-29 04:17
Modified
2026-08-21 12:28
Summary
Malicious code in react-wp-viewer (npm)
Details
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (443f37b7957fe3f1d4dd836b3a0e6eeddb513e334700e0c0a4616570071c13d8)
react-wp-viewer 0.2.4 is a dependency-confusion package. Its postinstall hook performs an HTTP GET to a hardcoded bare-IP endpoint at http://130.49.177.51:18080/p/dc-20260627-yandex-geobase carrying the package name, version, and a fixed nonce. The package self-identifies as a dependency-confusion proof-of-concept (__dependency_confusion_poc__: true) and the URL path encodes a campaign identifier referencing an internal package namespace, indicating the public name is being squatted to win resolution against an identically-named private/internal package. Any build that resolves react-wp-viewer from the public registry will silently execute the postinstall beacon, disclosing the installer's source IP, hostname-derived network position, and the fact that this internal name resolves within their environment, to an attacker-controlled host over plain HTTP. No installer credentials are read in the traced code, but the install-time callout to an attacker-controlled IP is the dependency-confusion attack pattern and provides material reconnaissance value to the operator.
Source: ghsa-malware (dae245d908c5e9ae1001f2590c5d362fa1f21e148cdf565487424fabdad44700)
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
CWE
- CWE-506 - The product contains code that appears to be malicious in nature.
- CWE-506 - The product contains code that appears to be malicious in nature.
- CWE-506 - The product contains code that appears to be malicious in nature.
- CWE-506 - The product contains code that appears to be malicious in nature.
Credits
{
"affected": [
{
"database_specific": {
"cwes": [
{
"cweId": "CWE-506",
"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",
"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"
}
],
"indicators": {
"evidence_files": [
{
"path": "postinstall.js",
"sha256": "4511fad6b3a02db6a7d6ceffff5f43aff822a423a273336b0dfb0aa02c28bade",
"tlsh": "60f05cb856f580782ded41c9f3d1b85f95cee241f1557480ed9217d123d369326b26b0"
},
{
"path": "package.json",
"sha256": "4f315412d4445d69898f3f3f6c1216cf13ffba2c1b1cf45a9711f38890d02e1d",
"tlsh": "7ce07d185821a73328c04a971577550694706d0b0108790c03e78838d3ce663c2be20f"
}
],
"package_integrity": [
{
"filename": "react-wp-viewer-0.2.15.tgz",
"hashes": {
"sha1": "2c07f5333e631d27ff6b7aa942dcd1f3605087aa",
"sha512_sri": "sha512-oGM3xkjQzReHwrsEy9hoHOaIdmo7Ga1Gb73CIu5nAPiASgvr3pKZ0wso5zb7HusX40p2YWECxnDjKT5thV3lHQ=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "react-wp-viewer"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "SEMVER"
}
],
"versions": [
"0.2.15",
"0.2.4",
"0.2.99"
]
}
],
"aliases": [
"GHSA-566x-g457-qg8g"
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-007713",
"import_time": "2026-06-29T05:07:05.765202301Z",
"modified_time": "2026-06-29T04:17:26Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "SEMVER"
}
],
"sha256": "08fd73c12a730e8dfbaa5bf21aa086a0a3de88241fbd6d880a20805838929572",
"source": "amazon-inspector",
"versions": [
"0.2.15"
]
},
{
"id": "IN-MAL-2026-007715",
"import_time": "2026-06-29T05:07:06.066562413Z",
"modified_time": "2026-06-29T04:17:42Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "SEMVER"
}
],
"sha256": "443f37b7957fe3f1d4dd836b3a0e6eeddb513e334700e0c0a4616570071c13d8",
"source": "amazon-inspector",
"versions": [
"0.2.4"
]
},
{
"id": "IN-MAL-2026-007714",
"import_time": "2026-06-29T05:07:05.929844066Z",
"modified_time": "2026-06-29T04:17:35Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "SEMVER"
}
],
"sha256": "5b9202fdee16d26d0f7484f7f9a0d2d264b38ad3200b396ef483cc2439225360",
"source": "amazon-inspector",
"versions": [
"0.2.99"
]
},
{
"id": "GHSA-566x-g457-qg8g",
"import_time": "2026-08-21T12:26:03.440499087Z",
"modified_time": "2026-08-21T11:53:39Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "SEMVER"
}
],
"sha256": "dae245d908c5e9ae1001f2590c5d362fa1f21e148cdf565487424fabdad44700",
"source": "ghsa-malware"
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (443f37b7957fe3f1d4dd836b3a0e6eeddb513e334700e0c0a4616570071c13d8)\nreact-wp-viewer 0.2.4 is a dependency-confusion package. Its postinstall hook performs an HTTP GET to a hardcoded bare-IP endpoint at http://130.49.177.51:18080/p/dc-20260627-yandex-geobase carrying the package name, version, and a fixed nonce. The package self-identifies as a dependency-confusion proof-of-concept (`__dependency_confusion_poc__: true`) and the URL path encodes a campaign identifier referencing an internal package namespace, indicating the public name is being squatted to win resolution against an identically-named private/internal package. Any build that resolves `react-wp-viewer` from the public registry will silently execute the postinstall beacon, disclosing the installer\u0027s source IP, hostname-derived network position, and the fact that this internal name resolves within their environment, to an attacker-controlled host over plain HTTP. No installer credentials are read in the traced code, but the install-time callout to an attacker-controlled IP is the dependency-confusion attack pattern and provides material reconnaissance value to the operator.\n\n## Source: ghsa-malware (dae245d908c5e9ae1001f2590c5d362fa1f21e148cdf565487424fabdad44700)\nAny computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.\n",
"id": "MAL-2026-6571",
"modified": "2026-08-21T12:28:12.538638567Z",
"published": "2026-06-29T04:17:26Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/react-wp-viewer/v/0.2.15"
},
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/react-wp-viewer/v/0.2.4"
},
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/react-wp-viewer/v/0.2.99"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-566x-g457-qg8g"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in react-wp-viewer (npm)"
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Loading…
Loading…