---
title: HTTP requests containing cross-site scripting patterns
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: >-
  Docs > Datadog Security > OOTB Rules > HTTP requests containing cross-site
  scripting patterns
---

# HTTP requests containing cross-site scripting patterns
Classification:attackTactic:[TA0001-initial-access](https://attack.mitre.org/tactics/TA0001)Technique:[T1189-drive-by-compromise](https://attack.mitre.org/techniques/T1189) 
## Goal{% #goal %}

Detect HTTP requests whose query strings contain common cross-site scripting patterns, including when responses succeed.

## Strategy{% #strategy %}

This rule monitors OCSF HTTP query strings for XSS-oriented payloads and correlates with successful HTTP responses where applicable, grouped by `@ocsf.src_endpoint.ip`.

## Triage and response{% #triage-and-response %}

- Check whether payloads are reflected in responses or stored and served to other users.
- Remediate output encoding or input validation on affected routes.