CVE-2025-63918
CVE-2025-63918 is a medium-severity vulnerability in Cnblogs Pdfpatcher with a CVSS 3.x base score of 6.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: Medium (CVSS 3.x base score 6.2)
- EPSS exploit prediction: 0% (28th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-197809
- Weakness: CWE-22
- Affected product: Cnblogs Pdfpatcher
- Published:
- Last modified:
Description
PDFPatcher executable does not validate user-supplied file paths, allowing directory traversal attacks allowing attackers to upload arbitrary files to arbitrary locations.
Frequently asked questions
- What is CVE-2025-63918?
- PDFPatcher executable does not validate user-supplied file paths, allowing directory traversal attacks allowing attackers to upload arbitrary files to arbitrary locations.
- How severe is CVE-2025-63918?
- CVE-2025-63918 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2025-63918 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-63918?
- CVE-2025-63918 affects Cnblogs Pdfpatcher. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-63918?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-63918 have an EU (EUVD) identifier?
- Yes. CVE-2025-63918 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-197809.
- When was CVE-2025-63918 published?
- CVE-2025-63918 was published on 2025-11-17 and last updated on 2026-06-17.
References
- https://github.com/cydtseng/Vulnerability-Research/blob/main/pdfpatcher/DirectoryTraversal-ImageExport.md
- https://github.com/wmjordan/PDFPatcher
- https://www.cnblogs.com/pdfpatcher
Affected products (1)
- cpe:2.3:a:cnblogs:pdfpatcher:*:*:*:*:*:*:*:*
More vulnerabilities in Cnblogs Pdfpatcher
- CVE-2025-63917 — High (CVSS 7.1): PDFPatcher thru 1.1.3.4663 executable's XML bookmark import functionality does not restrict XML external entity (XXE)…
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