diff --git a/.mokogitea/workflows/security-audit.yml b/.mokogitea/workflows/security-audit.yml
new file mode 100644
index 0000000..f316b90
--- /dev/null
+++ b/.mokogitea/workflows/security-audit.yml
@@ -0,0 +1,98 @@
+# Copyright (C) 2026 Moko Consulting <hello@mokoconsulting.tech>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+# FILE INFORMATION
+# DEFGROUP: Gitea.Workflow
+# INGROUP: MokoStandards.Security
+# REPO: https://git.mokoconsulting.tech/MokoConsulting/MokoStandards
+# PATH: /.gitea/workflows/security-audit.yml
+# VERSION: 01.00.00
+# BRIEF: Dependency vulnerability scanning for composer and npm packages
+
+name: "Universal: Security Audit"
+
+on:
+  schedule:
+    - cron: '0 6 * * 1'  # Weekly on Monday at 06:00 UTC
+  pull_request:
+    branches:
+      - main
+    paths:
+      - 'composer.json'
+      - 'composer.lock'
+      - 'package.json'
+      - 'package-lock.json'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+env:
+  NTFY_URL: ${{ vars.NTFY_URL || 'https://ntfy.mokoconsulting.tech' }}
+  NTFY_TOPIC: ${{ vars.NTFY_TOPIC || 'gitea-security' }}
+
+jobs:
+  audit:
+    name: Dependency Audit
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Composer audit
+        if: hashFiles('composer.lock') != ''
+        run: |
+          echo "=== Composer Security Audit ==="
+          if ! command -v composer &> /dev/null; then
+            sudo apt-get update -qq
+            sudo apt-get install -y -qq php-cli composer >/dev/null 2>&1
+          fi
+          composer audit --format=plain 2>&1 | tee /tmp/composer-audit.txt
+          RESULT=$?
+          if [ $RESULT -ne 0 ]; then
+            echo "::warning::Composer vulnerabilities found"
+            echo "composer_vulnerable=true" >> "$GITHUB_ENV"
+          else
+            echo "No known vulnerabilities in composer dependencies"
+          fi
+
+      - name: NPM audit
+        if: hashFiles('package-lock.json') != ''
+        run: |
+          echo "=== NPM Security Audit ==="
+          npm audit --production 2>&1 | tee /tmp/npm-audit.txt || true
+          if npm audit --production 2>&1 | grep -q "found 0 vulnerabilities"; then
+            echo "No known vulnerabilities in npm dependencies"
+          else
+            echo "::warning::NPM vulnerabilities found"
+            echo "npm_vulnerable=true" >> "$GITHUB_ENV"
+          fi
+
+      - name: Notify on vulnerabilities
+        if: env.composer_vulnerable == 'true' || env.npm_vulnerable == 'true'
+        run: |
+          REPO="${{ github.event.repository.name }}"
+          curl -sS \
+            -H "Title: ${REPO} has vulnerable dependencies" \
+            -H "Tags: lock,warning" \
+            -H "Priority: high" \
+            -d "Security audit found vulnerabilities. Review dependency updates." \
+            "${NTFY_URL}/${NTFY_TOPIC}" || true
+
+
+      - name: Joomla version audit
+        if: always()
+        run: |
+          if [ -f "monitoring/joomla-version-audit.php" ] && [ -n "$JOOMLA_SITES" ]; then
+            echo "$JOOMLA_SITES" > /tmp/sites.json
+            php monitoring/joomla-version-audit.php --sites /tmp/sites.json || true
+            echo "### Joomla Version Audit" >> $GITHUB_STEP_SUMMARY
+            rm -f /tmp/sites.json
+          else
+            echo "Joomla audit skipped (no script or JOOMLA_SITES_JSON not configured)"
+          fi
+        env:
+          JOOMLA_SITES: ${{ vars.JOOMLA_SITES_JSON }}
+