CVE-2010-0817

EXPLOITED

Microsoft SharePoint Server 2007 <12.0.0.6421 - XSS

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2010-0817 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 1 public exploit from researchers including High-Tech Bridge SA.

AI-analyzed exploit summary This exploit demonstrates a reflected XSS vulnerability in Microsoft SharePoint Server 2007 via the '/_layouts/help.aspx' script, where the 'cid0' parameter fails to sanitize user input, allowing arbitrary JavaScript execution.

Description

Cross-site scripting (XSS) vulnerability in _layouts/help.aspx in Microsoft SharePoint Server 2007 12.0.0.6421 and possibly earlier, and SharePoint Services 3.0 SP1 and SP2, versions, allows remote attackers to inject arbitrary web script or HTML via the cid0 parameter.

Exploits (1)

exploitdb WORKING POC VERIFIED
by High-Tech Bridge SA · textwebappswindows
https://www.exploit-db.com/exploits/12450

This exploit demonstrates a reflected XSS vulnerability in Microsoft SharePoint Server 2007 via the '/_layouts/help.aspx' script, where the 'cid0' parameter fails to sanitize user input, allowing arbitrary JavaScript execution.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Microsoft SharePoint Server 2007 (12.0.0.6421 and prior)
No auth needed
Prerequisites: Access to the SharePoint Server instance
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (5)

Core 5
Core References
US Government Resource third-party-advisory x_refsource_cert
http://www.us-cert.gov/cas/techalerts/TA10-159B.html
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7468
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/511021/100/0/threaded

Scores

EPSS 0.2871
EPSS Percentile 97.9%

Details

VulnCheck KEV 2010-06-08
CWE
CWE-79
Status published
Products (2)
microsoft/sharepoint_server 2007
microsoft/sharepoint_services 3.0 sp1 (4 CPE variants)
Published Apr 29, 2010
Tracked Since Feb 18, 2026