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Case File

CVE-2008-3843

MEDIUM · CVSS 4.3 EPSS 21.99%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2008-08-27 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.3. It affects Microsoft. Its EPSS score suggests a 22.0% probability of exploitation in the next 30 days. It may be remotely exploitable.

CVE
CVE-2008-3843
Severity
MEDIUM
CVSS
4.3
EPSS
21.99%
Microsoft

Original NVD 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.