CVE-2010-0817 Cross-site scripting in n/a
Remote attackers can inject arbitrary web script or HTML via the cid0 parameter in SharePoint help pages, potentially compromising user sessions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2010-0817?
CVE-2010-0817 is a medium-severity cross-site scripting vulnerability in Microsoft Sharepoint Server, published on 29 Apr 2010. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2010-0817?
It affects 2 products.
Products include Microsoft Sharepoint Server, Microsoft Sharepoint Services.
How do I fix CVE-2010-0817?
No fix has been published for CVE-2010-0817 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2010-0817 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-0817 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Microsoft Sharepoint Server
- CVE-2026-50522 Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
- CVE-2026-58644 Microsoft SharePoint Deserialization of Untrusted Data
- CVE-2026-20963 Microsoft SharePoint Deserialization of Untrusted Data
- CVE-2025-53770 Microsoft SharePoint Deserialization of Untrusted Data
- CVE-2023-29357 Microsoft SharePoint Server Privilege Escalation
Sources
Also known as GHSA-xj8q-vqrm-hvqr.