> 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/fr/web/business-logic.md).
# Logique métier
Failles de logique métier, contournement du flux de travail, abus de la confiance côté client, contrôles incohérents et exploitation de la logique applicative.
Notes de logique métier pour les laboratoires de PortSwigger Web Security Academy, axées sur les étapes de test pratiques, la validation avec Burp Suite, le comportement des payloads et le flux de travail d’exploitation.
## Flux de test
1. Identifiez la fonctionnalité vulnérable et la requête, le paramètre, l’en-tête, le cookie ou le point d’injection côté navigateur pertinent.
2. Reproduisez le comportement dans Burp Suite avec une charge utile minimale avant d’intensifier l’attaque.
3. Validez l’impact avec une preuve de concept claire, comme l’accès au compte, la divulgation de données, l’exécution de code, le SSRF ou un changement d’état.
4. Conservez inchangés les charges utiles, les URL, les jetons et les identifiants du laboratoire tout en documentant le chemin d’exploitation.
## Laboratoires
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