Here's how to integrate the ASP.NET CustomValidator control with client-side code to create a page that uses Ajax and server-side code to validate data at the browser. In a comment to a tip in our ...

In theory, PreviousPage lets you access data on the page the user just requested. In practice it doesn't work if you're also using Master Pages unless you understand ASP.NET naming containers.

Microsoft released an emergency patch for its ASP.NET Core to fix a high-severity vulnerability that allows unauthenticated attackers to gain SYSTEM privileges on devices that use the Web development ...

Microsoft has released out-of-band (OOB) security updates to patch a critical ASP.NET Core privilege escalation vulnerability. The security flaw (tracked as CVE-2026-40372) was found in the ASP.NET ...

You can check the .NET Framework version installed on your Windows 11/10 computer in any of the following ways: Using Command Prompt Using Registry Editor Using ...

Earlier this week, Microsoft patched a vulnerability that was flagged with the "highest ever" severity rating received by an ASP.NET Core security flaw. This HTTP request smuggling bug (CVE-2025-55315 ...

The Kestrel web server flaw allows request smuggling attacks, but the actual risk depends on the application code and deployment. Microsoft has patched a critical vulnerability in ASP.NET Core that ...

A federal appeals court struck down the Federal Communications Commission’s net neutrality rules that prevented internet service providers from throttling or blocking some content or charging more to ...

The Supreme Court’s Chevron ruling opened the door for an appeals court to block the FCC’s net neutrality rules. The Supreme Court’s Chevron ruling opened the door for an appeals court to block the ...

Learn the best practices and built-in safeguards for preventing attacks and protecting sensitive data in your ASP.NET Core web applications. Today’s web applications are vulnerable to a variety of ...