T08 · Insecure Dependencies
Warning
- Location
SKILL.md:13- Finding
Execution of an Unpinned Third-Party npm Package
- Content
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Vulnerability Details
File Location:
SKILL.md, lines 13–16
Vulnerability Type: Unpinned and automatically executed third-party dependency
Risk Level: Mediumbash ## Installation ```bash npx --yes newtranx-aitext Similar unpinned `npx newtranx-ai` commands recur throughout the documented workflow. ### Technical Analysis The installation instruction uses `npx --yes` to resolve, download, and execute the `newtranx-ai` package from the npm registry without specifying an exact version or requesting installation confirmation. The project provides no lockfile, integrity hash, reviewed local implementation, verified publisher information, or other mechanism that binds execution to audited package content. Consequently, the code executed by this command can change after the Skill has been reviewed. The `--yes` option further reduces user oversight by automatically accepting installation. If the package, its publisher account, or one of its transitive dependencies is compromised, following the documented command can result in execution of attacker-controlled JavaScript. This finding does not establish that `newtranx-ai` is currently malicious. It identifies an unsafe supply-chain execution pattern in the Skill instructions. ### Attack Path 1. An attacker compromises the npm package, its publisher account, or a dependency resolved by the package, or publishes a malicious later version through another supply-chain failure. 2. A user follows the Skill's installation instruction and runs `npx --yes newtranx-ai`. 3. `npx` resolves and downloads the mutable package version available from the configured npm registry. 4. Package lifecycle hooks or the package executable run with the invoking user's privileges. 5. Malicious code can access resources available to that user, including local files, environment variables, npm credentials, and service tokens. Later workflow commands may also expose video files and ...[truncated 727 chars]- Remediation
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Remediation Suggestions
- Pin the package to an explicitly reviewed version, for example:
bash npm exec --package=newtranx-ai@<verified-version> -- newtranx-ai - Remove
--yesso unexpected package installation is not silently accepted. - Install the dependency in a project governed by a committed lockfile rather than resolving mutable package content for every invocation.
- Verify the package publisher, official repository, release provenance, and npm package signatures or attestations where available.
- Record and verify package integrity metadata and audit both direct and transitive dependencies before recommending execution.
- Execute the CLI with least privilege in an isolated environment that exposes only the media files and credentials required for the task.
- Pin every documented invocation consistently; later commands must call the reviewed local binary rather than independently resolving the latest registry version.
- Pin the package to an explicitly reviewed version, for example: