# Deferred Security Issues

These items were identified during a security review on 2026-05-02 and consciously deferred.
**Must be addressed before opening the application to a larger or public userbase.**

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## 1. Session credentials in URL query parameters (logged-in users)

**Files:** `src/models/calendar/events/events.router.ts` — all GET/PUT/DELETE handlers

`sessionId` and `sessionKey` are currently read from query parameters, which means they appear in server access logs, browser history, proxy logs, and `Referer` headers.

**Fix:** Move to request headers (`X-Session-Id` / `X-Session-Key`) or the request body. Requires a corresponding frontend update.

> Note: the shared calendar `password` parameter in query params is intentional (iCal clients don't support headers) and is acceptable for the current setup.

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## 2. No event ownership check

**Files:** `src/models/calendar/events/events.router.ts`
- `PUT /:eventId` (update)
- `PUT /move/:eventId` (move)
- `DELETE /:eventId` (delete)

Currently any active user can edit, move, or delete any event regardless of who created it. This is acceptable while all users are trusted admins.

**Fix:** When non-admin users are introduced, fetch the event first and verify `event.createdById === user.userId` before allowing the mutation. Add an `isAdmin` flag to the user model to let admins bypass the check.

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## 3. Activation token has no expiry

> **Superseded for new accounts (2026-09-05).** The admin module
> (`src/models/admin/`) replaced account creation for the feedback, tickets and admin
> apps: accounts now come from `invitations`, whose tokens expire after 7 days and are
> stored only as a SHA-256 hash. The item below still stands for the legacy calendar
> `users` table, which the admin module deliberately left alone - see
> `docs/calendar-auth-migration.md`.

**File:** `src/models/calendar/users/users.service.ts` — `createUser` / `activateUser`

The email activation link is valid indefinitely. Acceptable for a small, trusted userbase.

**Fix:**
1. Add an `activation_expires` column to the `users` table (e.g. `DATETIME`).
2. Set it to `NOW() + INTERVAL 24 HOUR` in `createUser`.
3. Check `activation_expires > NOW()` in `activateUser` before accepting the token.

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## 4. Password reset token has no expiry

> **Superseded for new accounts (2026-09-05).** Password resets for admin-module accounts
> go through better-auth, whose reset tokens expire after one hour. As with item 3, the
> text below still applies to the legacy calendar `users` table.

**File:** `src/models/calendar/users/users.service.ts` — `initiatePasswordReset` / `finalizePasswordReset`

The reset token stored in `pw_reset_token_hash` never expires. Acceptable for a small, trusted userbase.

**Fix:**
1. Add a `pw_reset_expires` column to the `users` table (e.g. `DATETIME`).
2. Set it to `NOW() + INTERVAL 15 MINUTE` in `initiatePasswordReset`.
3. Check `pw_reset_expires > NOW()` in `finalizePasswordReset` before accepting the token.