High 7.1Published Nov 17, 2025

CVE-2025-63917PDFPatcher thru 1.1.3.4663 executable's XML bookmark import functionality does not restrict XML external entity (XXE) references.

Updated under an hour ago (2026-10-19 10:10 UTC)

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It affects cnblogs pdfpatcher. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 7.1 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L
Weakness (CWE): CWE-611
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

cnblogs pdfpatcher cnblogs:pdfpatcher	through 1.1.3.4663	NVD

References

https://github.com/cydtseng/Vulnerability-Research/blob/main/pdfpatcher/XXE-Importers.mdexploit, third-party-advisory
https://github.com/wmjordan/PDFPatcherproduct
https://www.cnblogs.com/pdfpatcherproduct

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.