CVE-2015-2556 XML external entity in n/a
Remote attackers can read arbitrary files on Microsoft SharePoint Server via XML External Entity injection in InfoPath Forms Services.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2015-2556?
CVE-2015-2556 is a medium-severity vulnerability in Microsoft Sharepoint Server, published on 14 Oct 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The InfoPath Forms Services component in Microsoft SharePoint Server 2007 SP3 and 2010 SP2 misparses DTDs, which allows remote attackers to read arbitrary files via an XML document containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue, aka "Microsoft SharePoint Information Disclosure Vulnerability."
Weakness: CWE-200
Which versions are affected by CVE-2015-2556?
It affects 1 product.
Products include Microsoft Sharepoint Server.
How do I fix CVE-2015-2556?
No fix has been published for CVE-2015-2556 yet. Limit exposure of the affected software until one is available.
Is CVE-2015-2556 being exploited?
There is no known exploitation of CVE-2015-2556 in the wild and no public exploit code.
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-c758-mgr5-grgx.