This attack succeeds only if the X-AspNet-Version: 4.0.3 is confirmed and no upgrade has been performed.
XSS vulnerabilities can occur in web applications built on top of ASP.NET, allowing attackers to inject malicious scripts into content from otherwise trusted websites. x-aspnet-version 4.0.3 vulnerabilities
This Cross-Site Scripting (XSS) vulnerability in the framework itself allowed remote attackers to inject arbitrary scripts or HTML. This attack succeeds only if the X-AspNet-Version: 4
Exposing this specific version can lead an attacker to test for the following critical flaws: Exposing this specific version can lead an attacker
: Some specific systems running on CLR 4.0.30319, such as the NetAdmin IAM system, have had unique vulnerabilities (e.g., CVE-2024-51026 ) reported recently. National Institute of Standards and Technology (.gov) +7 Remediation Steps To align with security best practices and "defense-in-depth" principles, you should disable the version disclosure. StackHawk Documentation 11 sites X-AspNet-Version Response Header Scanner These headers reveal the version of the ASP.NET or ASP.NET MVC framework being used by the server. Attackers can exploit this vuln... StackHawk Documentation Version Disclosure (ASP.NET) - Vulnerabilities - Acunetix Description. This web application exposes ASP.NET framework version information through the X-AspNet-Version HTTP response header ... Acunetix CVE-2024-51026 Detail - NVD Nov 11, 2024 —