#!/bin/bash
# verify-core-integrity.sh

echo "WordPress Core Integrity Check"
echo "==============================="

# Verify core file checksums
if wp core verify-checksums; then
    echo "✓ Core files verified - no modifications detected"
else
    echo "✗ ALERT: Core files modified or corrupted"
    echo "Details:"
    wp core verify-checksums --format=json | jq -r '.[] | "  - \(.)"'

    # Send alert
    echo "Core file integrity check failed on $(hostname)" | \
        mail -s "WordPress Security Alert" admin@example.com
fi

#!/bin/bash
# daily-integrity-check.sh

LOG_FILE="/var/log/wp-security.log"

log() {
    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $@" | tee -a "$LOG_FILE"
}

log "Starting core integrity check"

# Check WordPress core
if ! wp core verify-checksums 2>&1 | tee -a "$LOG_FILE"; then
    log "✗ Core integrity check FAILED"

    # Create detailed report
    {
        echo "WordPress Core Integrity Failure"
        echo "================================="
        echo "Timestamp: $(date)"
        echo "Server: $(hostname)"
        echo "WordPress version: $(wp core version)"
        echo ""
        echo "Modified files:"
        wp core verify-checksums 2>&1 | grep "^Error:"
    } | mail -s "URGENT: WordPress Core Modified" security@example.com

    exit 1
fi

log "✓ Core integrity check passed"

#!/bin/bash
# scan-vulnerabilities.sh

echo "WordPress Vulnerability Scan"
echo "============================"

# Check if WPScan CLI is available
if ! command -v wpscan &> /dev/null; then
    echo "Installing WPScan..."
    gem install wpscan
fi

# Update WPScan database
wpscan --update

# Scan WordPress installation
SCAN_RESULTS=$(wpscan --url "$(wp option get siteurl)" \
    --format json \
    --random-user-agent \
    --disable-tls-checks)

# Parse vulnerabilities
VULN_COUNT=$(echo "$SCAN_RESULTS" | jq '.plugins | to_entries[] | select(.value.vulnerabilities | length > 0) | .value.vulnerabilities | length' | awk '{s+=$1} END {print s}')

if [ "$VULN_COUNT" -gt 0 ]; then
    echo "✗ ALERT: $VULN_COUNT vulnerabilities detected"

    # Generate detailed report
    echo "$SCAN_RESULTS" | jq -r '.plugins | to_entries[] | select(.value.vulnerabilities | length > 0) | "Plugin: \(.key)\nVulnerabilities:\n\(.value.vulnerabilities[] | "  - \(.title) (Severity: \(.vuln_type))\n    Fixed in: \(.fixed_in // "No fix available")\n")"'

else
    echo "✓ No known vulnerabilities detected"
fi

#!/bin/bash
# check-security-updates.sh

echo "Checking for security updates..."

# Get plugins with available updates
UPDATES=$(wp plugin list --update=available --format=json)

if [ "$UPDATES" != "[]" ]; then
    echo "Plugins with available updates:"
    echo "$UPDATES" | jq -r '.[] | "- \(.name) (Current: \(.version), Available: \(.update_version))"'

    # Check update changelogs for security keywords
    echo ""
    echo "Checking changelogs for security mentions..."

    echo "$UPDATES" | jq -r '.[].name' | while read PLUGIN; do
        CHANGELOG=$(wp plugin get "$PLUGIN" --field=update_changelog 2>/dev/null)

        if echo "$CHANGELOG" | grep -qi 'security\|vulnerability\|xss\|sql injection\|exploit'; then
            echo "⚠ SECURITY UPDATE AVAILABLE: $PLUGIN"
            echo "  Update immediately using: wp plugin update $PLUGIN"
        fi
    done
else
    echo "✓ All plugins up to date"
fi

#!/bin/bash
# create-file-baseline.sh - Create baseline of file checksums

BASELINE_FILE="/var/backups/wp-file-baseline.txt"
WP_PATH="/var/www/html"

echo "Creating file integrity baseline..."

cd "$WP_PATH"

# Generate checksums for all WordPress files
find . -type f \
    -not -path "./wp-content/uploads/*" \
    -not -path "./wp-content/cache/*" \
    -not -path "./wp-content/backup/*" \
    -exec md5sum {} \; | sort > "$BASELINE_FILE"

echo "✓ Baseline created: $BASELINE_FILE"
echo "Total files: $(wc -l < $BASELINE_FILE)"

#!/bin/bash
# detect-file-changes.sh

BASELINE_FILE="/var/backups/wp-file-baseline.txt"
WP_PATH="/var/www/html"
REPORT_FILE="/tmp/file-changes-$(date +%Y%m%d).txt"

if [ ! -f "$BASELINE_FILE" ]; then
    echo "ERROR: Baseline file not found. Run create-file-baseline.sh first."
    exit 1
fi

echo "Scanning for file changes..."

cd "$WP_PATH"

# Generate current checksums
find . -type f \
    -not -path "./wp-content/uploads/*" \
    -not -path "./wp-content/cache/*" \
    -not -path "./wp-content/backup/*" \
    -exec md5sum {} \; | sort > /tmp/current-checksums.txt

# Compare with baseline
{
    echo "WordPress File Change Report"
    echo "============================="
    echo "Date: $(date)"
    echo ""

    # Modified files
    echo "Modified Files:"
    comm -13 "$BASELINE_FILE" /tmp/current-checksums.txt | awk '{print $2}' | while read file; do
        if grep -q "$file" "$BASELINE_FILE"; then
            echo "  MODIFIED: $file"
        fi
    done

    echo ""

    # New files
    echo "New Files:"
    comm -13 "$BASELINE_FILE" /tmp/current-checksums.txt | awk '{print $2}' | while read file; do
        if ! grep -q "$file" "$BASELINE_FILE"; then
            echo "  ADDED: $file"
        fi
    done

    echo ""

    # Deleted files
    echo "Deleted Files:"
    comm -23 "$BASELINE_FILE" /tmp/current-checksums.txt | awk '{print $2}' | while read file; do
        echo "  DELETED: $file"
    done

} > "$REPORT_FILE"

# Check if changes detected
CHANGE_COUNT=$(cat "$REPORT_FILE" | grep -c "MODIFIED:\|ADDED:\|DELETED:")

if [ "$CHANGE_COUNT" -gt 0 ]; then
    echo "✗ ALERT: $CHANGE_COUNT file changes detected"
    echo "Report: $REPORT_FILE"

    # Email report
    mail -s "WordPress File Changes Detected" admin@example.com < "$REPORT_FILE"
else
    echo "✓ No file changes detected"
fi

# Cleanup
rm /tmp/current-checksums.txt

#!/bin/bash
# scan-malware.sh - Detect common malware patterns

WP_PATH="/var/www/html"
REPORT_FILE="/tmp/malware-scan-$(date +%Y%m%d).txt"

echo "WordPress Malware Scan"
echo "======================"

# Suspicious patterns to check
declare -a PATTERNS=(
    "eval(base64_decode"
    "eval(gzinflate"
    "eval(str_rot13"
    "system(\$_"
    "shell_exec"
    "passthru"
    "base64_decode.*eval"
    "FilesMan"
    "r57shell"
    "c99shell"
    "WSO shell"
)

{
    echo "Malware Scan Report"
    echo "==================="
    echo "Date: $(date)"
    echo "Path: $WP_PATH"
    echo ""

    for PATTERN in "${PATTERNS[@]}"; do
        echo "Checking for: $PATTERN"

        MATCHES=$(grep -r -l -i "$PATTERN" "$WP_PATH" \
            --exclude-dir=wp-content/uploads \
            --exclude-dir=wp-content/cache \
            --exclude-dir=node_modules \
            --include="*.php" 2>/dev/null)

        if [ ! -z "$MATCHES" ]; then
            echo "✗ SUSPICIOUS: Files matching '$PATTERN':"
            echo "$MATCHES" | while read file; do
                echo "  - $file"
            done
            echo ""
        fi
    done

} > "$REPORT_FILE"

# Check if suspicious files found
SUSPICIOUS_COUNT=$(grep -c "✗ SUSPICIOUS:" "$REPORT_FILE" || echo 0)

if [ "$SUSPICIOUS_COUNT" -gt 0 ]; then
    echo "✗ ALERT: Potential malware detected"
    echo "Report: $REPORT_FILE"

    # Send alert
    mail -s "URGENT: Potential Malware Detected" security@example.com < "$REPORT_FILE"
else
    echo "✓ No malware patterns detected"
fi

#!/bin/bash
# check-suspicious-files.sh

WP_PATH="/var/www/html"

echo "Checking for suspicious files..."

# Check for unusual file types in wp-content
echo "Checking for executable files in wp-content..."
find "$WP_PATH/wp-content" \
    -type f \
    \( -name "*.exe" -o -name "*.sh" -o -name "*.bat" \) \
    -print

# Check for PHP files in uploads directory
echo "Checking for PHP files in uploads..."
find "$WP_PATH/wp-content/uploads" -name "*.php" -print

# Check for recently modified files (last 24 hours)
echo "Recently modified PHP files (last 24 hours)..."
find "$WP_PATH" -name "*.php" -mtime -1 -type f -print

# Check for files with suspicious permissions
echo "Files with 777 permissions..."
find "$WP_PATH" -type f -perm 0777 -print

#!/bin/bash
# audit-users.sh

echo "WordPress User Security Audit"
echo "=============================="

# Check for users with admin privileges
echo "Administrator Accounts:"
wp user list --role=administrator --format=table --fields=ID,user_login,user_email,user_registered

ADMIN_COUNT=$(wp user list --role=administrator --format=count)
if [ "$ADMIN_COUNT" -gt 3 ]; then
    echo "⚠ WARNING: $ADMIN_COUNT administrator accounts (recommended: 1-2)"
fi

echo ""

# Check for weak usernames
echo "Checking for common/weak usernames..."
WEAK_USERS=("admin" "administrator" "root" "test" "demo")

for USERNAME in "${WEAK_USERS[@]}"; do
    if wp user get "$USERNAME" &>/dev/null; then
        echo "✗ WARNING: Common username detected: $USERNAME"
        echo "  Recommended: Delete or rename this account"
    fi
done

echo ""

# Check for inactive admin accounts
echo "Inactive Administrator Accounts (no posts/pages):"
wp user list --role=administrator --format=json | \
    jq -r '.[] | select(.posts == "0") | "- \(.user_login) (registered: \(.user_registered))"'

echo ""

# Check user capabilities
echo "Users with 'delete_users' capability:"
wp user list --format=json | \
    jq -r '.[] | select(.roles[] | contains("administrator")) | .user_login'

#!/bin/bash
# check-password-policy.sh

echo "Password Policy Check"
echo "===================="

# This requires custom code to check password strength
# WordPress doesn't expose password hashes via WP-CLI for security

# Check for recent password changes
echo "Users who haven't changed password recently:"
# This would require custom user meta tracking

# Check for 2FA status (if plugin installed)
if wp plugin is-installed two-factor; then
    echo "2FA Status:"
    wp user list --format=json | \
        jq -r '.[] | "\(.user_login): \(if .two_factor_enabled then "Enabled" else "DISABLED" end)"'
fi

# List users who can install plugins/themes
echo ""
echo "Users with plugin/theme installation privileges:"
wp user list --role=administrator,editor --format=csv --fields=user_login,roles

#!/bin/bash
# comprehensive-security-check.sh

REPORT_FILE="/tmp/wordpress-security-report-$(date +%Y%m%d).txt"
LOG_FILE="/var/log/wp-security.log"

log() {
    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $@" | tee -a "$LOG_FILE"
}

{
    echo "WordPress Comprehensive Security Report"
    echo "========================================"
    echo "Generated: $(date)"
    echo "Server: $(hostname)"
    echo ""

    # Core integrity
    echo "1. Core File Integrity"
    echo "----------------------"
    if wp core verify-checksums; then
        echo "✓ PASS: Core files verified"
    else
        echo "✗ FAIL: Core file modifications detected"
    fi
    echo ""

    # Plugin security
    echo "2. Plugin Security"
    echo "------------------"
    PLUGIN_UPDATES=$(wp plugin list --update=available --format=count)
    echo "Plugins needing updates: $PLUGIN_UPDATES"

    if [ "$PLUGIN_UPDATES" -eq 0 ]; then
        echo "✓ PASS: All plugins up to date"
    else
        echo "⚠ WARNING: Plugin updates available"
        wp plugin list --update=available --format=table --fields=name,version,update_version
    fi
    echo ""

    # Theme security
    echo "3. Theme Security"
    echo "-----------------"
    THEME_UPDATES=$(wp theme list --update=available --format=count)
    echo "Themes needing updates: $THEME_UPDATES"
    echo ""

    # User accounts
    echo "4. User Account Security"
    echo "------------------------"
    ADMIN_COUNT=$(wp user list --role=administrator --format=count)
    echo "Administrator accounts: $ADMIN_COUNT"

    if [ "$ADMIN_COUNT" -gt 3 ]; then
        echo "⚠ WARNING: Too many administrator accounts"
    else
        echo "✓ PASS: Administrator count acceptable"
    fi
    echo ""

    # SSL/HTTPS check
    echo "5. SSL/HTTPS Configuration"
    echo "--------------------------"
    SITE_URL=$(wp option get siteurl)
    if [[ "$SITE_URL" == https://* ]]; then
        echo "✓ PASS: HTTPS enabled"
    else
        echo "✗ FAIL: Site not using HTTPS"
    fi
    echo ""

    # File permissions
    echo "6. File Permissions"
    echo "-------------------"
    INSECURE_FILES=$(find . -type f -perm 0777 | wc -l)
    echo "Files with 777 permissions: $INSECURE_FILES"

    if [ "$INSECURE_FILES" -eq 0 ]; then
        echo "✓ PASS: No files with overly permissive permissions"
    else
        echo "⚠ WARNING: Insecure file permissions detected"
    fi
    echo ""

    # WordPress version
    echo "7. WordPress Version"
    echo "--------------------"
    CURRENT_VERSION=$(wp core version)
    LATEST_VERSION=$(wp core check-update --format=json | jq -r '.[0].version // empty')

    echo "Current version: $CURRENT_VERSION"
    echo "Latest version: ${LATEST_VERSION:-$CURRENT_VERSION}"

    if [ -z "$LATEST_VERSION" ]; then
        echo "✓ PASS: WordPress is up to date"
    else
        echo "⚠ WARNING: WordPress update available"
    fi

} > "$REPORT_FILE"

log "Security report generated: $REPORT_FILE"

# Email report
mail -s "WordPress Security Report - $(hostname)" admin@example.com < "$REPORT_FILE"

echo "✓ Security report complete: $REPORT_FILE"

# Add to crontab: crontab -e

# Daily core integrity check at 2 AM
0 2 * * * /usr/local/bin/verify-core-integrity.sh >> /var/log/wp-security.log 2>&1

# Daily vulnerability scan at 3 AM
0 3 * * * /usr/local/bin/scan-vulnerabilities.sh >> /var/log/wp-security.log 2>&1

# Daily file change detection at 4 AM
0 4 * * * /usr/local/bin/detect-file-changes.sh >> /var/log/wp-security.log 2>&1

# Weekly comprehensive security report (Mondays at 8 AM)
0 8 * * 1 /usr/local/bin/comprehensive-security-check.sh

# Monthly user audit (first day of month)
0 9 1 * * /usr/local/bin/audit-users.sh | mail -s "Monthly User Audit" admin@example.com