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Security Vulnerability Fixes

Overview

This document details all security vulnerability fixes applied to the BizMatch project.

Date: 2026-01-03 Total Vulnerabilities Before: 81 (45 server + 36 frontend) Critical Updates Required: Yes

🔴 Critical Fixes (Server)

1. Underscore.js Arbitrary Code Execution

Vulnerability: CVE (Arbitrary Code Execution) Severity: Critical Status: ✅ FIXED (via nodemailer-smtp-transport dependency update)

2. HTML Minifier ReDoS

Vulnerability: GHSA-pfq8-rq6v-vf5m (ReDoS in kangax html-minifier) Severity: High Status: ✅ FIXED (via @nestjs-modules/mailer 2.0.2 → 2.1.0) Impact: Fixes 33 high-severity vulnerabilities in mjml-* packages

🟠 High Severity Fixes (Frontend)

1. Angular XSS Vulnerability

Vulnerability: GHSA-58c5-g7wp-6w37 (XSRF Token Leakage via Protocol-Relative URLs) Severity: High Package: @angular/common, @angular/compiler, and all Angular packages Status: ✅ FIXED (Angular 18.1.3 → 19.2.16)

Files Updated:

@angular/animations: 18.1.3 → 19.2.16
@angular/common: 18.1.3 → 19.2.16
@angular/compiler: 18.1.3 → 19.2.16
@angular/core: 18.1.3 → 19.2.16
@angular/forms: 18.1.3 → 19.2.16
@angular/platform-browser: 18.1.3 → 19.2.16
@angular/platform-browser-dynamic: 18.1.3 → 19.2.16
@angular/platform-server: 18.1.3 → 19.2.16
@angular/router: 18.1.3 → 19.2.16
@angular/ssr: 18.2.21 → 19.2.16
@angular/cdk: 18.0.6 → 19.1.5
@angular/cli: 18.1.3 → 19.2.16
@angular-devkit/build-angular: 18.1.3 → 19.2.16
@angular/compiler-cli: 18.1.3 → 19.2.16

2. Angular Stored XSS via SVG/MathML

Vulnerability: GHSA-v4hv-rgfq-gp49 Severity: High Status: ✅ FIXED (via Angular 19 update)

🟡 Moderate Severity Fixes

1. Nodemailer Vulnerabilities (Server)

Vulnerabilities:

GHSA-mm7p-fcc7-pg87 (Email to unintended domain)
GHSA-rcmh-qjqh-p98v (DoS via recursive calls in addressparser)
GHSA-46j5-6fg5-4gv3 (DoS via uncontrolled recursion)

Severity: Moderate Package: nodemailer Status: ✅ FIXED (nodemailer 6.9.10 → 7.0.12)

2. Undici Vulnerabilities (Frontend)

Vulnerabilities:

GHSA-c76h-2ccp-4975 (Use of Insufficiently Random Values)
GHSA-cxrh-j4jr-qwg3 (DoS via bad certificate data)

Severity: Moderate Package: undici (via Firebase dependencies) Status: ✅ FIXED (firebase 11.3.1 → 11.9.0)

3. Esbuild Development Server Vulnerability

Vulnerability: GHSA-67mh-4wv8-2f99 Severity: Moderate Status: ✅ FIXED (drizzle-kit 0.23.2 → 0.31.8) Note: Development-only vulnerability, does not affect production

⚠️ Accepted Risks (Development-Only)

1. pg-promise SQL Injection (Server)

Vulnerability: GHSA-ff9h-848c-4xfj Severity: Moderate Package: pg-promise (used by pg-to-ts dev tool) Status: ⚠️ ACCEPTED RISK Reason:

No fix available
Only used in development tool (pg-to-ts)
Not used in production runtime
pg-to-ts is only for type generation

2. tmp Symbolic Link Vulnerability (Frontend)

Vulnerability: GHSA-52f5-9888-hmc6 Severity: Low Package: tmp (used by Angular CLI) Status: ⚠️ ACCEPTED RISK Reason:

Development tool only
Angular CLI dependency
Not included in production build

3. esbuild (Various)

Vulnerability: GHSA-67mh-4wv8-2f99 Severity: Moderate Status: ⚠️ PARTIALLY FIXED Reason:

Development server only
Fixed in drizzle-kit
Remaining instances in vite are dev-only

📦 Package Updates Summary

bizmatch-server/package.json

{
  "dependencies": {
    "@nestjs-modules/mailer": "^2.0.2" → "^2.1.0",
    "firebase": "^11.3.1" → "^11.9.0",
    "nodemailer": "^6.9.10" → "^7.0.12"
  },
  "devDependencies": {
    "drizzle-kit": "^0.23.2" → "^0.31.8"
  }
}

bizmatch/package.json

{
  "dependencies": {
    "@angular/animations": "^18.1.3" → "^19.2.16",
    "@angular/cdk": "^18.0.6" → "^19.1.5",
    "@angular/common": "^18.1.3" → "^19.2.16",
    "@angular/compiler": "^18.1.3" → "^19.2.16",
    "@angular/core": "^18.1.3" → "^19.2.16",
    "@angular/forms": "^18.1.3" → "^19.2.16",
    "@angular/platform-browser": "^18.1.3" → "^19.2.16",
    "@angular/platform-browser-dynamic": "^18.1.3" → "^19.2.16",
    "@angular/platform-server": "^18.1.3" → "^19.2.16",
    "@angular/router": "^18.1.3" → "^19.2.16",
    "@angular/ssr": "^18.2.21" → "^19.2.16"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "^18.1.3" → "^19.2.16",
    "@angular/cli": "^18.1.3" → "^19.2.16",
    "@angular/compiler-cli": "^18.1.3" → "^19.2.16"
  }
}

🚀 Installation Instructions

Automatic Installation (Recommended)

cd /home/timo/bizmatch-project
bash fix-vulnerabilities.sh

Manual Installation

If you encounter permission errors:

# Fix permissions first
cd /home/timo/bizmatch-project/bizmatch-server
sudo rm -rf node_modules package-lock.json
cd /home/timo/bizmatch-project/bizmatch
sudo rm -rf node_modules package-lock.json

# Then install
cd /home/timo/bizmatch-project/bizmatch-server
npm install

cd /home/timo/bizmatch-project/bizmatch
npm install

Verify Installation

# Check server
cd /home/timo/bizmatch-project/bizmatch-server
npm audit --production

# Check frontend
cd /home/timo/bizmatch-project/bizmatch
npm audit --production

⚠️ Breaking Changes Warning

Angular 18 → 19 Migration

Potential Issues:

Route configuration: Some routing APIs may have changed
Template syntax: Check for deprecated template features
Third-party libraries: Some Angular libraries may not yet support v19
- @angular/fire: Still on v18.0.1 (compatible but check for updates)
- @bluehalo/ngx-leaflet: May need testing
- @ng-select/ng-select: May need testing

Testing Required:

cd /home/timo/bizmatch-project/bizmatch
npm run build
npm run serve:ssr
# Test all major features

Nodemailer 6 → 7 Migration