w-docx2pdf@1.0.25
A tool for docx2pdf.
AI Security Review
scanned 15d ago · by lpm-firewall-aiThe remote executable is package-aligned with the Windows conversion feature, and the inspected code does not establish malicious intent. The mutable, unchecked binary download creates a concrete supply-chain risk, so this warrants a warning.
Static reason
No blocking static signals were detected.; previous stored version diff introduced dangerous source
Trigger
Package installation downloads the executable; if it is missing, invoking Windows document conversion downloads and launches it.
Impact
A changed or compromised remote executable could run with the invoking user's privileges when conversion is requested.
Mechanism
The installer writes cv.exe under the package source directory. The Microsoft Office conversion path passes that executable the input and output file paths and starts it.
AI rationale
The remote executable is package-aligned with the Windows conversion feature, and the inspected code does not establish malicious intent. The mutable, unchecked binary download creates a concrete supply-chain risk, so this warrants a warning.
Evidence
package.jsonscripts/install.mjssrc/downloadFiles.mjssrc/WDocx2pdf.mjssrc/cv.exe
Network endpoints1
github.com/yuda-lyu/w-docx2pdf/raw/refs/heads/master/src/cv.exe
Decision evidence
public snapshotAI called this Suspicious at 82.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The postinstall hook downloads a Windows executable from a mutable GitHub branch into the package directory.
- The conversion API can download that executable when missing, then launch it to process the requested document.
- The required PDF fixture is binary and the citation tool could not provide a printable source excerpt for it.
Evidence against
- The installer runs only from the installed package directory, and the download URL is the package’s own GitHub repository.
- Executable launch is part of the Windows document-conversion path; no separate malicious behavior was established.
Behavioral surface
ChildProcessCryptoEvalFilesystemNetwork
HighEntropyStringsMinifiedPossibleObfuscationUrlStrings
Source & flagged code
8 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node scripts/install.mjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkgsrcPython/test.batView file
•path = srcPython/test.bat
kind = build_helper
sizeBytes = 23
magicHex = [redacted]
Medium
Ships Build Helper
Package ships non-JavaScript build or shell helper files.
srcPython/test.batView on unpkgtest/ztmp.docxView file
•path = test/ztmp.docx
kind = compressed_blob
sizeBytes = 514867
magicHex = [redacted]
Medium
Ships Compressed Blob
Package ships compressed or archive-like blobs.
Findings
5 High4 Medium6 Low
HighInstall Time Lifecycle Scriptspackage.json
HighShips High Entropy Blobtest/ztmpTrue.pdf
HighPayload In Excluded Dirtest/ztmpTrue.pdf
HighSemantic Analysis Limiteddist/w-docx2pdf.umd.js#virtual:normalized:round1
HighPrevious Version Dangerous Deltadist/w-docx2pdf.umd.js
MediumNetwork
MediumShips Build HelpersrcPython/test.bat
MediumShips Compressed Blobtest/ztmp.docx
MediumStructural Risk Force Deep Review
LowScripts Present
LowEval
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to w-docx2pdf@1.0.25.
See all versions of w-docx2pdf for other recorded verdicts.
- Review the evidence and your use of w-docx2pdf@1.0.25 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.