CVE-2025-63917 Details
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.
A vulnerability allowing XML External Entity (XXE) injection has been identified in PDFPatcher versions through 1.1.3.4663. The issue arises in the application's XML bookmark import feature, which utilizes .NET's XmlDocument class without properly disabling external entity resolution. This oversight enables attackers to read arbitrary files from the victim's filesystem, exfiltrate sensitive data via out-of-band HTTP requests, conduct Server-Side Request Forgery (SSRF) attacks against internal network resources, or cause a denial-of-service by exploiting entity expansion.
Users are advised to update to PDFPatcher version 1.1.3.4663 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Nov 17, 2025References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/cydtseng/Vulnerability-Research/blob/main/pdfpatcher/XXE-Importers.md | [email protected] | ExploitThird Party Advisory |
| https://github.com/wmjordan/PDFPatcher | [email protected] | Product |
| https://www.cnblogs.com/pdfpatcher | [email protected] | Product |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-611 | Improper Restriction of XML External Entity Reference | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| cnblogs pdfpatcher | <= 1.1.3.4663 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jan 8, 2026 | Initial Analysis | [email protected] |
| Nov 17, 2025 | CVE Modified | CISA-ADP |
| Nov 17, 2025 | New CVE Received | [email protected] |