WordPress Fancy Product Designer <4.6.9 - Arbitrary File Upload

id: CVE-2021-24370

info:
  name: WordPress Fancy Product Designer <4.6.9  - Arbitrary File Upload
  author: pikpikcu
  severity: critical
  description: |
    WordPress Fancy Product Designer plugin before 4.6.9 is susceptible to an arbitrary file upload. An attacker can upload malicious files and execute code on the server, modify data, and/or gain full control over a compromised system without authentication.
  impact: |
    Attackers can upload malicious files and execute arbitrary code on the target system.
  remediation: |
    Update WordPress Fancy Product Designer plugin to version 4.6.9 or later to fix the vulnerability.
  reference:
    - https://www.wordfence.com/blog/2021/06/critical-0-day-in-fancy-product-designer-under-active-attack/
    - https://wpscan.com/vulnerability/82c52461-1fdc-41e4-9f51-f9dd84962b38
    - https://seclists.org/fulldisclosure/2020/Nov/30
    - https://nvd.nist.gov/vuln/detail/CVE-2021-24370
    - https://www.secpod.com/blog/critical-zero-day-flaw-actively-exploited-in-wordpress-fancy-product-designer-plugin/
  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-2021-24370
    cwe-id: CWE-434
    epss-score: 0.11015
    epss-percentile: 0.95013
    cpe: cpe:2.3:a:radykal:fancy_product_designer:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 1
    vendor: radykal
    product: fancy_product_designer
    framework: wordpress
    google-query: inurl:“/wp-content/plugins/fancy-product-designer”
  tags: cve2021,cve,wordpress,wp,seclists,wpscan,rce,wp-plugin,fancyproduct,radykal

http:
  - method: GET
    path:
      - "{{BaseURL}}/wp-content/plugins/fancy-product-designer/inc/custom-image-handler.php"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '{"error":"You need to define a directory'

      - type: word
        part: header
        words:
          - "text/html"

      - type: status
        status:
          - 200
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