TI-2025-39491 Aliases CVE-2025-63918 GHSA-h764-vg49-mhv9

PDFPatcher executable does not validate user-supplied file paths, allowing directory…

MEDIUM 61CWE-22Published 2025-11-17 · Updated 2025-11-18

Key facts

Attack vector: Local
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · High · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

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

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00427 37th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cnblogs:pdfpatcher::::::::	before 1.1.3.4663	Vulnerable	Cnblogs

cpe:2.3:a:cnblogs:pdfpatcher:*:*:*:*:*:*:*:* Versions before 1.1.3.4663 Vulnerable ·Cnblogs

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-63918
2026-10-03 Alias added: GHSA-h764-vg49-mhv9

References

Exploit 1

https://github.com/cydtseng/Vulnerability-Research/blob/main/pdfpatcher/DirectoryTraversal-ImageExport.md

Other 2

TI-2025-39490 PDFPatcher thru 1.1.3.4663 executable's XML bookmark import functionality does not… CVSS 3.1HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences