CVE-2026-61598
2026-09-16
14h17 +00:00
14h17 +00:00
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Mô tả CVE
djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. Prior to version 1.0.7, `djust.mixins.model_binding.ModelBindingMixin` provides a default `update_model` event handler and is part of the LiveView base MRO, so every LiveView exposes it. It `setattr`s a view attribute whose name is client-supplied (`field`), gated only by: reject `_`-prefixed names; reject a 14-entry denylist of framework internals (`FORBIDDEN_MODEL_FIELDS`); optional `allowed_model_fields` which defaults to None = allow all; and `hasattr` existence. As a result, a client can set any public, existing view attribute — not just the fields actually bound with `dj-model=` in the rendered template. The denylist covers framework plumbing but nothing about developer business/authz state, and the allowlist is opt-in (off by default). A developer who binds one `dj-model="search"` input and also keeps `self.account_id` / `self.is_admin` / `self.total_price` as view state does not realize a client can set ALL of them via `{type:event, event:"update_model", params:{field, value}}` over the WebSocket. Type coercion matches the target attribute's type (so `"true"` -> bool True), aiding the attacker. This issue is fixed in djust 1.0.7. As a workaround, set `allowed_model_fields` explicitly on every view using dj-model (or subclassing LiveView) to the minimal list of bindable fields; do not keep authorization/ownership state in public view attributes that share the view with dj-model bindings.
Thông tin CVE
Điểm yếu liên quan
| Tên điểm yếu | Nguồn | |
|---|---|---|
| Improperly Controlled Modification of Dynamically-Determined Object Attributes The product receives input from an upstream component that specifies multiple attributes, properties, or fields that are to be initialized or updated in an object, but it does not properly control which attributes can be modified. |
