SECURITY: Webhook secret exposed in plain text in app detail page and request logs #36

New Issue

2026-02-16T06:56:32+01:00

clawbot commented

2026-02-16 06:56:32 +01:00

Severity: MEDIUM

Files

internal/handlers/app.go line 130: webhookURL := "https://" + request.Host + "/webhook/" + application.WebhookSecret
templates/app_detail.html: displays full webhook URL with secret
internal/middleware/middleware.go (Logging middleware): logs full URL including webhook secret on every request

Description

The webhook secret is embedded directly in the URL path (/webhook/{secret}) and:

Displayed in plain text in the app detail page UI, copyable to clipboard
Logged in full by the request logging middleware on every webhook invocation
Stored in plain text in the database (the webhook_secret column), alongside the hash

While the hash-based lookup is good (avoids timing attacks), the plain-text secret is still stored and logged.

Suggested Fix

Logging: Redact the secret from logged URLs. The logging middleware should mask /webhook/* paths:

url := request.URL.String()
if strings.HasPrefix(url, "/webhook/") {
    url = "/webhook/[REDACTED]"
}

Storage: Consider not storing the plain-text secret after initial display. Show it once on creation, then only store the hash. The user can regenerate if lost.
UI: Add a "show/hide" toggle rather than displaying the full URL by default.

## Severity: MEDIUM ## Files - `internal/handlers/app.go` line 130: `webhookURL := "https://" + request.Host + "/webhook/" + application.WebhookSecret` - `templates/app_detail.html`: displays full webhook URL with secret - `internal/middleware/middleware.go` (Logging middleware): logs full URL including webhook secret on every request ## Description The webhook secret is embedded directly in the URL path (`/webhook/{secret}`) and: 1. **Displayed in plain text** in the app detail page UI, copyable to clipboard 2. **Logged in full** by the request logging middleware on every webhook invocation 3. **Stored in plain text** in the database (the `webhook_secret` column), alongside the hash While the hash-based lookup is good (avoids timing attacks), the plain-text secret is still stored and logged. ## Suggested Fix 1. **Logging**: Redact the secret from logged URLs. The logging middleware should mask `/webhook/*` paths: ```go url := request.URL.String() if strings.HasPrefix(url, "/webhook/") { url = "/webhook/[REDACTED]" } ``` 2. **Storage**: Consider not storing the plain-text secret after initial display. Show it once on creation, then only store the hash. The user can regenerate if lost. 3. **UI**: Add a "show/hide" toggle rather than displaying the full URL by default.

sneak closed this issue

2026-02-16 07:01:37 +01:00

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Reference: sneak/upaas#36