What’s Vulnerable › Vulnerabilities

CVE-2025-63918

• Severity: medium (CVSS 6.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-11-17 · updated 2026-06-17
• Weakness: CWE-22

Description

PDFPatcher executable does not validate user-supplied file paths, allowing directory traversal attacks allowing attackers to upload arbitrary files to arbitrary locations.

Affected products

• Cnblogs Pdfpatcher: before 1.1.3.4663 — fixed in 1.1.3.4663

How to fix

Upgrade to a fixed version: Cnblogs Pdfpatcher 1.1.3.4663. Check the vendor advisory for mitigations.

References

• https://github.com/cydtseng/Vulnerability-Research/blob/main/pdfpatcher/DirectoryTraversal-ImageExport.md
• https://github.com/wmjordan/PDFPatcher
• https://www.cnblogs.com/pdfpatcher

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