CVE-2025-63917

HIGH EPSS 25.6%
Published Nov 17, 20257mo ago · Modified Jun 17, 20261w ago
7.1 CVSS 3.1
High
Find Similar
Published Nov 17, 2025 7mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.1
Exploitability
2.8
Impact
4.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity None
Availability Low

Threat Intelligence

EPSS Exploit Probability
25.6% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-611

Affected Products 1

VendorProductVersionRange
cnblogspdfpatcher* ≤1.1.3.4663

References 3

  • github.com https://github.com/cydtseng/Vulnerability-Research/blob/main/pdfpatcher/XXE-Importers.md
    ExploitThird Party Advisory
  • github.com https://github.com/wmjordan/PDFPatcher
    Product
  • cnblogs.com https://www.cnblogs.com/pdfpatcher
    Product

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.