XSS in Microsoft SharePoint

2007.05.12
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79


CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

Tried and failed. Exactly how have you configured your test SP site? -----Original Message----- From: ville.solarius (at) gmail (dot) com [email concealed] [mailto:ville.solarius (at) gmail (dot) com [email concealed]] Sent: Friday, May 04, 2007 3:01 PM To: bugtraq (at) securityfocus (dot) com [email concealed] Subject: XSS in Microsoft SharePoint Hi! I think this is a XSS in MS SharePoint, you can reproduce it in SharePoint test server using for example following url: http://www.example.com/sharepoint/default.aspx/%22);}if(true){alert(%22q wertytis This is due a lack of string stripping when putting the path into javascript. It seems to work at least on every main page. I tried to check for this in the web, but I didn't found this hole anywhere. -- Regards, Solarius - http://www.solarius.name All mail to and from this domain is GFI-scanned.


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