vetkit.csharp.xss.request-validation-disabled
ASP.NET request validation is disabled with [ValidateInput(false)]. Markup in form and query values reaches the action unfiltered, so every output path must encode it correctly.
Last updated:
Suite: Security
csharp
ASP.NET request validation is disabled with [ValidateInput(false)]. Markup in form and query values reaches the action unfiltered, so every output path must encode it correctly.
Category: SECURITY · Engine rule severity: WARNING
How to fix it
Remove [ValidateInput(false)]; allow HTML only on the specific model property that needs it ([AllowHtml]) and sanitize that value before rendering it.
References
Source: packages/engine/rules/sast/csharp.yml.
Generated from shipped rule definitions at build time. Matching is a review signal, not proof of exploitability. “generic” denotes text matching, not complete language or framework coverage. Runtime configuration and available tools affect whether a rule runs.