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computer vulnerability alert 27676

Roundcube Webmail: Cross Site Scripting

Synthesis of the vulnerability

An attacker can trigger a Cross Site Scripting of Roundcube Webmail, in order to run JavaScript code in the context of the web site.
Impacted software: Debian, Fedora.
Severity of this computer vulnerability: 2/4.
Consequences of an attack: client access/rights.
Attacker's origin: document.
Creation date: 05/11/2018.
Références of this announce: DSA-4344-1, FEDORA-2018-24d1e5a2c3, FEDORA-2018-928e15e1db, FEDORA-2018-d527206a77, VIGILANCE-VUL-27676.

Description of the vulnerability

The Roundcube Webmail product offers a web service.

However, it does not filter received data before inserting them in generated HTML documents.

An attacker can therefore trigger a Cross Site Scripting of Roundcube Webmail, in order to run JavaScript code in the context of the web site.
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