CVE-2025-7783
Use of Insufficiently Random Values vulnerability in form-data allows HTTP Parameter Pollution (HPP). This vulnerability is associated with program files lib/form_data.Js.
This issue affects form-data: < 2.5.4, 3.0.0 - 3.0.3, 4.0.0 - 4.0.3.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Puntuación base: 9.4
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.77%
- Percentil entre todas las CVEs puntuadas: 77
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access75 % - Impacto principal
T1565.002Transmitted Data Manipulationimpact70 %
Vulnerabilidad de valores aleatorios insuficientes (CWE-330) en librería form-data permite HTTP Parameter Pollution desde red sin autenticación (AV:N/PR:N). Impacta integridad de datos (VI:H) mediante manipulación de parámetros HTTP.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-330
Referencias
- https://github.com/form-data/form-data/commit/3d1723080e6577a66f17f163ecd345a21d8d0fd0
- https://github.com/form-data/form-data/security/advisories/GHSA-fjxv-7rqg-78g4
- https://lists.debian.org/debian-lts-announce/2025/07/msg00023.html
- https://github.com/form-data/form-data/security/advisories/GHSA-fjxv-7rqg-78g4
JSON original (NVD)
Mostrar
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"timestamp": "2025-07-22T14:54:27.721309Z"
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"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"exploitMaturity": "NOT_DEFINED",
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"userInteraction": "NONE",
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"subIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "NONE",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
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"subConfidentialityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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"affected": [
{
"source": "7ffcee3d-2c14-4c3e-b844-86c6a321a158",
"affectedData": [
{
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"versions": [
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"versionType": "semver"
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{
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{
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"versionType": "semver"
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],
"packageName": "form-data",
"programFiles": [
"lib/form_data.js"
],
"collectionURL": "https://npmjs.com/form-data",
"defaultStatus": "unaffected"
}
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],
"published": "2025-07-18T17:15:44.747",
"references": [
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"vulnStatus": "Deferred",
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"description": [
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"descriptions": [
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"lang": "en",
"value": "Use of Insufficiently Random Values vulnerability in form-data allows HTTP Parameter Pollution (HPP). This vulnerability is associated with program files lib/form_data.Js.\n\nThis issue affects form-data: < 2.5.4, 3.0.0 - 3.0.3, 4.0.0 - 4.0.3."
},
{
"lang": "es",
"value": "La vulnerabilidad de uso de valores insuficientemente aleatorios en form-data permite la contaminación de parámetros HTTP (HPP). Esta vulnerabilidad está asociada con los archivos de programa lib/form_data.Js. Este problema afecta a form-data: < 2.5.4, 3.0.0 - 3.0.3, 4.0.0 - 4.0.3."
}
],
"lastModified": "2026-06-17T10:05:39.033",
"sourceIdentifier": "7ffcee3d-2c14-4c3e-b844-86c6a321a158"
}