> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/de/web/xss.md).
# Cross-Site-Scripting (XSS)
XSS-Notizen für PortSwigger Web Security Academy Labs mit Schwerpunkt auf praktischen Testschritten, Burp-Suite-Validierung, Payload-Verhalten und Ausnutzungs-Workflow.
## Test-Workflow
1. Identifizieren Sie die verwundbare Funktion und die relevante Anfrage, den Parameter, den Header, das Cookie oder die browserseitige Sink.
2. Reproduzieren Sie das Verhalten zunächst in Burp Suite mit einer minimalen Payload, bevor Sie den Angriff eskalieren.
3. Validieren Sie die Auswirkung mit einem klaren Proof of Concept, etwa Kontozugriff, Datenoffenlegung, Codeausführung, SSRF oder Zustandsänderung.
4. Lassen Sie Payloads, URLs, Tokens und Lab-Anmeldedaten unverändert, während Sie den Ausnutzungspfad dokumentieren.
## Labs
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# Agent Instructions
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