Recorded 31 Oct 2026 at 18:22 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position.
See the latest record.
The historical field “Public exploit code” recorded Nuclei detection-template membership. It did not establish exploit availability. The original recorded fields remain below.
CVEMicrosoft Security Response Center
ASP.NET Core Remote Code Execution Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in ASP.NET Core allows an unauthorized attacker to execute code over a network.
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Issued by
Microsoft
Customer action
Required: follow the MSRC remediation guidance
Affected products
Microsoft Visual Studio 2022 version 17.14, Microsoft Visual Studio 2026 version 18.10, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 10.0 runtime installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 10.0 runtime installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 10.0 runtime installed on Windows, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 11.0 runtime installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 11.0 runtime installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 11.0 runtime installed on Windows, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 8.0 runtime installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 8.0 runtime installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 8.0 runtime installed on Windows, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 9.0 runtime installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 9.0 runtime installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 9.0 runtime installed on Windows
Complete at observationRead 31 Oct 2026 at 18:20 UTC
CISA KEV
Complete at observationRead 31 Oct 2026 at 18:20 UTC
FIRST EPSS
Complete at observationRead 31 Oct 2026 at 18:20 UTC
Public detection templates (Nuclei)
Complete at observationRead 31 Oct 2026 at 18:20 UTC
Coverage describes the sources at this observation. A complete read then does not establish their current position.
What changed
Detection template: No Nuclei template listed · Customer action: Required: apply the update → Required: follow the MSRC remediation guidance · Public disclosure: No → No (MSRC assessment) · Exploitation detected: Not reported by MSRC → No known exploitation (MSRC assessment)
Detection template: Unknown: exploit-code evidence is incomplete or retained → No Nuclei template listed · CISA KEV: Unknown: catalog evidence is incomplete or retained → Not listed in the collected catalog
Detection template: No Nuclei template listed → Unknown: exploit-code evidence is incomplete or retained · CISA KEV: Not listed in the collected catalog → Unknown: catalog evidence is incomplete or retained
Affected products: Microsoft Visual Studio 2022 version 17.14, Microsoft Visual Studio 2026 version 18.10, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 10.0 installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 10.0 installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 10.0 installed on Windows, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 11.0 installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 11.0 installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 11.0 installed on Windows, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 8.0 installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 8.0 installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 8.0 installed on Windows, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 9.0 installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 9.0 installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 9.0 installed on Windows → Microsoft Visual Studio 2022 version 17.14, Microsoft Visual Studio 2026 version 18.10, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 10.0 runtime installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 10.0 runtime installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 10.0 runtime installed on Windows, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 11.0 runtime installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 11.0 runtime installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 11.0 runtime installed on Windows, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 8.0 runtime installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 8.0 runtime installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 8.0 runtime installed on Windows, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 9.0 runtime installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 9.0 runtime installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 9.0 runtime installed on Windows
Page history
Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.
22 Oct 2026 · 22:02:57 UTCAffected productsMicrosoft Visual Studio 2022 version 17.14, Microsoft Visual Studio 2026 version 18.10, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 10.0 installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 10.0 installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 10.0 installed on Windows, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 11.0 installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 11.0 installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 11.0 installed on Windows, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 8.0 installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 8.0 installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 8.0 installed on Windows, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 9.0 installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 9.0 installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 9.0 installed on Windows → Microsoft Visual Studio 2022 version 17.14, Microsoft Visual Studio 2026 version 18.10, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 10.0 runtime installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 10.0 runtime installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 10.0 runtime installed on Windows, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 11.0 runtime installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 11.0 runtime installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 11.0 runtime installed on Windows, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 8.0 runtime installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 8.0 runtime installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 8.0 runtime installed on Windows, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 9.0 runtime installed on Linux, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 9.0 runtime installed on Mac OS, Microsoft.AspNetCore.Components.WebAssembly.Server on .NET 9.0 runtime installed on Windows