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your-ai-workflow-firebase-os@1.6.1: Malicious npm security report | LPM Firewall

registry / your-ai-workflow-firebase-os / 1.6.1

your-ai-workflow-firebase-os@1.6.1

Your AI Firebase — a complete Firebase-powered admin app in one React component.

AI Security Review

scanned 3h ago · by lpm-firewall-ai

On installation, the package modifies a consumer project without a user command. It installs a Vite plugin that subsequently restores package-controlled versions of consumer entry files.

Static reason

High-risk behavior combination matched malicious policy.; previous stored version diff introduced dangerous source

Trigger

npm installs the package and later Vite resolves the injected plugin.

Impact

Consumer application code, styles, dependencies, and build configuration can be replaced or kept under package control.

Mechanism

Install-time consumer-project overwrite with build-time file restoration.

Attack narrative

The postinstall hook runs automatically, clears consumer CSS, overwrites App.tsx and main.tsx, changes package.json and vite.config.ts, and creates project files. The injected Vite plugin then rewrites App.tsx and main.tsx whenever their contents differ, making the modification persistent across builds. Comments explicitly discuss a prior block for prompt injection, which is manipulation directed at review controls.

Rationale

This is a concrete, unconsented install-hook abuse chain that broadly mutates and persistently controls consumer project files. No self-dependency or install-time exfiltration was found, but those are not needed to establish the harmful behavior.

Evidence

package.jsonscripts/postinstall.jsdist/vite.es.jssrc/index.csssrc/App.csssrc/main.tsxsrc/App.tsxsrc/your-ai-workflow-firebase-os/vite.config.ts.env

Source & flagged code

6 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.js

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

dist/your-ai-workflow-firebase-os.cjs.jsView file

1Object.defineProperty(exports,Symbol.toStringTag,{value:`Module`});const e=require(`./chunk-DYteiM-1.cjs`),t=require(`./ContactPopup-BOCo64bf.cjs`),n=require(`./assetUpload-yZ5bNDU... L2: `),n=new Blob([`${e}\n${t}`],{type:`text/csv`}),r=window.URL.createObjectURL(n),i=document.createElement(`a`);i.href=r,i.download=`export_${Y.name||`table`}.csv`,i.click(),window.U...

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/your-ai-workflow-firebase-os.cjs.jsView on unpkg · L1

scripts/postinstall.jsView file

17* L18: * It does NOT write GEMINI.md / AGENTS.md any more: AI Studio reserves those L19: * filenames for the developer's own instructions, and a package writing them ... L113: if (current.includes(CLEARED_MARKER)) continue; L114: fs.writeFileSync(filePath, `/* ${CLEARED_MARKER} postinstall */\n`); L115: console.log(` ✓ Cleared ${file} (was conflicting with your-ai-workflow-firebase-os styles)`); ... L148: const mainPath = path.join(srcDir, 'main.tsx'); L149: fs.writeFileSync(mainPath, withBanner(canonical ? canonical.main : FALLBACK_MAIN_TSX)); L150: console.log(' ✓ Wrote main.tsx (owned by Your AI Firebase — the build discards edits to it)'); ... L153: const fbosDir = path.join(srcDir, 'your-ai-workflow-firebase-os'); L154: if (!fs.existsSync(fbosDir)) fs.mkdirSync(fbosDir, { recur

Critical

Ai Agent Control Hijack

Source creates an unconsented AI-agent control surface through install-time mutation or a default unauthenticated remote skill channel.

scripts/postinstall.jsView on unpkg · L17

dist/your-ai-workflow-firebase-os.cssView file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 1

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

dist/your-ai-workflow-firebase-os.cssView on unpkg

dist/server.cjs.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = your-ai-workflow-firebase-os@1.8.0 matchedIdentity = npm:[redacted]:1.8.0 similarity = 0.710 summary = stored previous version shares package body but lacks this dangerous source file

High

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

dist/server.cjs.jsView on unpkg

Source & flagged code

6 flagged

package.jsonView file

Lines 39-79json

39 "server.template.ts",

40 "scripts/postinstall.js",

41 "scripts/patchViteConfig.js",

42 "src/index.css",

43 "src/pages/Home.tsx",

44 "src/microcomponents/registry.ts",

45 "src/configs/theme.config.ts",

46 "src/configs/forms/registry.ts",

47 "src/configs/forms/contactForm.config.ts",

48 "src/configs/forms/supportForm.config.ts",

49 "src/configs/pages/registry.ts"

50 ],

51 "scripts": {

52 "dev": "vite",

53 "test": "vitest run",

54 "test:watch": "vitest",

55 "build": "tsc -b && vite build",

56 "build:lib": "vite build",

57 "lint": "eslint .",

58 "preview": "vite preview",

59 "postinstall": "node scripts/postinstall.js",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L59

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg · L59

60 "release": "npm version patch && npm run build:lib && npm pack"

61 },

62 "dependencies": {

63 "@eslint/js": "^9.39.4",

64 "@tailwindcss/vite": "^4.2.2",

65 "@types/node": "^24.12.0",

66 "@types/react": "^19.2.14",

67 "@types/react-dom": "^19.2.3",

68 "@vitejs/plugin-react": "^6.0.1",

69 "clsx": "^2.1.1",

70 "firebase": ">=10",

71 "framer-motion": "^12.38.0",

72 "fuse.js": "^7.3.0",

73 "iconoir": "^7.11.0",

74 "iconoir-react": "^7.11.0",

75 "lucide-react": "^1.7.0",

76 "react": ">=18",

77 "react-dom": ">=18",

78 "react-dropzone": "^15.0.0",

79 "react-international-phone": "^4.8.0",

dist/your-ai-workflow-firebase-os.cjs.jsView file

Lines 1-21javascript

1Object.defineProperty(exports,Symbol.toStringTag,{value:`Module`});const e=require(`./chunk-DYteiM-1.cjs`),t=require(`./ContactPopup-BOCo64bf.cjs`),n=require(`./assetUpload-yZ5bNDUH.cjs`),

scripts/postinstall.jsView file

Lines 1-37javascript

1#!/usr/bin/env node

2/**

3 * your-ai-workflow-firebase-os postinstall script

4 *

5 * Runs automatically after `npm install your-ai-workflow-firebase-os`.

6 * Patches the consumer project so that <FirebaseOS /> renders correctly

7 * out of the box — no manual cleanup required.

8 *

9 * What it does:

10 * 1. Clears src/index.css and src/App.css to remove Vite default styling

11

dist/your-ai-workflow-firebase-os.cssView file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 1

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

dist/your-ai-workflow-firebase-os.cssView on unpkg

dist/server.cjs.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = your-ai-workflow-firebase-os@1.8.0 matchedIdentity = npm:[redacted]:1.8.0 similarity = 0.710 summary = stored previous version shares package body but lacks this dangerous source file

High

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

dist/server.cjs.jsView on unpkg