> 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-vulnerabilities/owasp-top-10-vulnerabilities/vulnerability-cross-site-scripting-xss/xxs-source-code-theft.md).
# Vol de code source via XSS
### XSS sur Gitea (v1.22.0)
Activé `http://localhost:3000` -> **Gitea** est accessible.
Connexion avec les identifiants pour Axel.
Vulnérabilité XSS connue.
Nous créons un projet avec une description contenant :
```bash
Test XSS
```
* Résultat :
### Mail intercepté via LinPEAS
contenu d'un e-mail :
* jobert\@localhost doit vérifier le dépôt Gitea
Nous envoyons un lien XSS contenant un script d'exfiltration qui lit le contenu de la page `index.php` du dépôt Gitea, l'encode en Base64, puis l'envoie à notre serveur web
{% code overflow="wrap" %}
```bash
COMPROMIS
```
{% endcode %}
#### Via notre serveur web
```bash
python -m http.server 8080
```
#### Contenu exfiltré (Base64 décodé) :
```bash
echo "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%2FPgoK" | base64 -d
```
* $valid/\_username = 'admin';
* $valid/\_password = 'IKw75eR0MR7CMIxhH0';
---
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