CVE-2008-3843: microsoft .net_framework Cross-site Scripting

Vulnerability summary

CVE-2008-3843 is a medium (CVSS 4.3) Cross-site Scripting vulnerability in microsoft .net_framework. EPSS estimates a 21.99% chance of exploitation in the next 30 days, higher than 97.6% of scored vulnerabilities.

Timeline

1. 27-08-2008
   PublishedVulnerability first disclosed.
2. 07-08-2024
   Last modifiedVulnerability information updated.

Description

Request Validation (aka the ValidateRequest filters) in ASP.NET in Microsoft .NET Framework with the MS07-040 update does not properly detect dangerous client input, which allows remote attackers to conduct cross-site scripting (XSS) attacks, as demonstrated by a query string containing a "<~/" (less-than tilde slash) sequence followed by a crafted STYLE element.

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.