High severity7.1NVD Advisory· Published Nov 17, 2025· Updated Jun 17, 2026
CVE-2025-63917
CVE-2025-63917
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.
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Affected products
4(expand)+ 1 more
- (no CPE)
- (no CPE)range: <=1.1.3.4663
- Range: <=1.1.3.4663
Patches
Vulnerability mechanics
References
2- github.com/cydtseng/Vulnerability-Research/blob/main/pdfpatcher/XXE-Importers.mdnvdExploitThird Party Advisory
- www.cnblogs.com/pdfpatchernvdProduct
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