Vigil@nce - Contao: Cross Site Scripting via Back End System Log
June 2018 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can trigger a Cross Site Scripting via Back End System
Log of Contao, in order to run JavaScript code in the context of
the web site.
Impacted products: Contao.
Severity: 2/4.
Creation date: 18/04/2018.
DESCRIPTION OF THE VULNERABILITY
The Contao product offers a web service.
However, it does not filter received data via Back End System Log
before inserting them in generated HTML documents.
An attacker can therefore trigger a Cross Site Scripting via Back
End System Log of Contao, in order to run JavaScript code in the
context of the web site.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Contao-Cross-Site-Scripting-via-Back-End-System-Log-25911