w-docx2pdf@1.0.24
A tool for docx2pdf.
AI Security Review
scanned 15d ago · by lpm-firewall-aiThe inspected code shows an unverified executable download during postinstall and its later execution during Windows conversion. That creates a concrete, package-aligned supply-chain risk, but the source does not prove an active attack, so this warrants a warning rather than a block.
Static reason
No blocking static signals were detected.; previous stored version diff introduced dangerous source
Trigger
Package installation downloads the file; a caller's Windows DOCX-to-PDF conversion invokes it.
Impact
A compromised or changed upstream executable could run with the user's privileges when conversion is requested; no malicious behavior in that executable was established by this source inspection.
Mechanism
The download uses a mutable repository branch and the inspected code shows no integrity check before the executable is used.
AI rationale
The inspected code shows an unverified executable download during postinstall and its later execution during Windows conversion. That creates a concrete, package-aligned supply-chain risk, but the source does not prove an active attack, so this warrants a warning rather than a block.
Evidence
package.jsonscripts/install.mjssrc/downloadFiles.mjssrc/WDocx2pdf.mjsdist/w-docx2pdf.umd.jssrc/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 84.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The postinstall hook invokes an installer that downloads a Windows executable from a mutable GitHub branch into the package source directory.
- The Windows conversion path obtains that executable and passes it to a child-process helper when conversion is requested.
- The executable is consistent with the package's stated DOCX-to-PDF function, but its contents are fetched remotely and are not verified by the inspected source.
Evidence against
- The installer exits when it is not running under node_modules, and the executable is only invoked from the conversion function.
- The conversion code rejects non-Windows platforms and supports an explicit LibreOffice mode.
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@1.0.24.
See all versions of w-docx2pdf for other recorded verdicts.
- Review the evidence and your use of w-docx2pdf@1.0.24 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.