CVE-2025-63917
Last modified
CVE-2025-63917 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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.. EPSS estimates a 0.34% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cnblogs | Pdfpatcher | <= 1.1.3.4663 |
References
- https://github.com/cydtseng/Vulnerability-Research/blob/main/pdfpatcher/XXE-Importers.mdExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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