ToolShell: a story of five vulnerabilities in Microsoft SharePoint

On July 19–20, 2025, various security companies and national CERTs published alerts about active exploitation of on-premise SharePoint servers. According to the reports, observed attacks did not require authentication, allowed attackers to gain full control over the infected servers, and were...

CVE-2019-1134

A cross-site-scripting XSS vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server, aka 'Microsoft Office SharePoint XSS Vulnerability'...

Microsoft SharePoint Server 2013 < 15.0.5311.1000 Multiple Vulnerabilities

According to its self-reported version number, the Microsoft SharePoint application running on the remote host is affected by multiple vulnerabilities. Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number. No source da...