CVE-2025-63917
Full vulnerability record from the local CVENow database.
Description
PDFPatcher thru 1.1.3.4663 executable's XML bookmark import functionality does not restrict XML external entity (XXE) references. The application uses .NET's XmlDocument class without disabling external entity resolution, enabling attackers to: Read arbitrary files from the victim's filesystem, exfiltrate sensitive data via out-of-band (OOB) HTTP requests, perform SSRF attacks against internal network resources, or cause a denial of service via entity expansion attacks.
Severity
HIGH
CVSS score
7.1
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2025-11-17 17:15:51.207000
Last modified
2026-11-05 14:10:00.273000
View original CVE JSON
{
"id": "CVE-2025-63917",
"sourceIdentifier": "[email protected]",
"published": "2025-11-17T17:15:51.207",
"lastModified": "2026-11-05T14:10:00.273",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "PDFPatcher thru 1.1.3.4663 executable's XML bookmark import functionality does not restrict XML external entity (XXE) references. The application uses .NET's XmlDocument class without disabling external entity resolution, enabling attackers to: Read arbitrary files from the victim's filesystem, exfiltrate sensitive data via out-of-band (OOB) HTTP requests, perform SSRF attacks against internal network resources, or cause a denial of service via entity expansion attacks."
},
{
"lang": "es",
"value": "La funcionalidad de importación de marcadores XML del ejecutable PDFPatcher hasta la versión 1.1.3.4663 no restringe las referencias a entidad externa XML (XXE). La aplicación utiliza la clase XmlDocument de .NET sin deshabilitar la resolución de entidades externas, lo que permite a los atacantes: Leer archivos arbitrarios del sistema de archivos de la víctima, exfiltrar datos sensibles a través de solicitudes HTTP fuera de banda (OOB), realizar ataques SSRF contra recursos de red internos, o causar una denegación de servicio mediante ataques de expansión de entidades."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"version": "n/a",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "REQUIRED",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"availabilityImpact": "LOW"
},
"exploitabilityScore": 2.8,
"impactScore": 4.2
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2025-11-17T19:46:27.747416Z",
"id": "CVE-2025-63917",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-611"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:cnblogs:pdfpatcher:*:*:*:*:*:*:*:*",
"versionEndIncluding": "1.1.3.4663",
"matchCriteriaId": "9EC28AA3-78F8-43DB-8F24-F702D4A4ED70"
}
]
}
]
}
],
"references": [
{
"url": "https://github.com/cydtseng/Vulnerability-Research/blob/main/pdfpatcher/XXE-Importers.md",
"source": "[email protected]",
"tags": [
"Exploit",
"Third Party Advisory"
]
},
{
"url": "https://github.com/wmjordan/PDFPatcher",
"source": "[email protected]",
"tags": [
"Product"
]
},
{
"url": "https://www.cnblogs.com/pdfpatcher",
"source": "[email protected]",
"tags": [
"Product"
]
}
]
}