| Título | Casdoor v2.356.0 Server-Side Request Forgery |
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| Descripción | Webhook SSRF (Server-Side Request Forgery)
**Evidence:**
```go
req, err := http.NewRequest(webhook.Method, webhook.Url, body)
// ...
resp, err := client.Do(req) // No URL validation, no internal network blocking
```
Admin-configured webhook URLs are fetched without any restriction on target address. No SSRF protections are in place.
**Attack scenario:** An attacker who gains org-admin access configures a webhook URL pointing to `http://x.x.x.x/latest/meta-data/` (AWS metadata endpoint) or internal services, exfiltrating cloud credentials or scanning internal infrastructure.
**Fix:** Validate webhook URLs against a denylist of private/reserved IP ranges. Use a dedicated HTTP client that resolves DNS and blocks connections to internal addresses.
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| Usuario | Ghufran Khan (UID 95493) |
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| Sumisión | 2026-03-17 14:25 (hace 20 días) |
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| Moderación | 2026-04-03 09:26 (17 days later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 355073 [Casdoor 2.356.0 Webhook URL escalada de privilegios] |
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| Puntos | 17 |
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