Security vulnerabilities and automated fixes for authorization issues
25 posts found
Authorization vulnerabilities occur when applications fail to properly enforce access controls, allowing users to access resources or perform actions beyond their intended permissions. This includes insecure direct object references, privilege escalation, and broken access control logic.
Related CWEs
Affected Languages
A Discord.js bot's auto-role feature allowed privilege escalation where any user with ManageRoles permission could add Administrator roles to automatic assignment lists, regardless of their own role hierarchy. The vulnerability existed because role.position validation checked only the bot's permissions, not the invoking user's role hierarchy relative to the target role.
The `hono` CORS middleware, as resolved in this service at 4.12.8, reflected the caller's `Origin` header back in `Access-Control-Allow-Origin` while also emitting `Access-Control-Allow-Credentials: true` whenever the `origin` option was left at its `'*'` default. That combination makes any website a trusted origin for credentialed cross-origin reads. The dependency range was raised from `^4.7.1` to `^4.13.5`, moving the installed copy from 4.12.8 to 4.13.5.
A resume generation endpoint in a Node.js backend accepted requests from any caller with network access, allowing attackers to consume OpenAI API quota without restriction. The vulnerability stemmed from missing authentication middleware on a cost-bearing endpoint. The fix adds mandatory API key validation via HTTP headers before processing any generation requests.
The `disableReminder` method in the `SchedulePush` class allowed any user to disable push notification reminders for arbitrary user IDs by manipulating the `e.user_id` event parameter. The fix adds a `checkFriend()` authorization gate that verifies the requesting user has a valid friendship relationship with the bot before modifying subscription state.
A critical authorization flaw in `src/v1/routes/index.js` allowed any authenticated API key holder to access arbitrary budgets by manipulating the `budgetSyncId` URL parameter. The fix introduces an environment-based allowlist that validates budget access before processing requests.
The k-skill-proxy server exposed multiple public API endpoints (`/health`, `/v1/vworld/search`, `/v1/fine-dust/report`, `/v1/assembly/bills`) without consistent rate limiting middleware, leaving them vulnerable to denial-of-service attacks. A `buildRateLimiter` function existed but wasn't applied to all endpoints. This fix ensures rate limiting is enforced on all public endpoints, preventing resource exhaustion attacks.
A high-severity flaw in Electron (CVE-2026-70608) allowed sandboxed iframes to bypass the `allow-popups` sandbox restriction through the internal OpenURL navigation path, letting malicious or compromised embedded content spawn unauthorized popup windows. The fix upgrades Electron from 40.10.6 to 41.10.3 (also patched in 42.0.1 and 39.8.10), closing the navigation-layer gap without requiring any application code changes.
A critical missing authentication vulnerability in `pz_minimax.py` allowed any network-connected user to delete stored MiniMax prompts via the `DELETE /pz_easyuse/minimax-prompts/{index}` endpoint without any access control. An attacker could enumerate sequential indices to wipe all user-created prompts from the shared JSON file. The fix restricts the DELETE endpoint to localhost-only requests by checking `request.remote` against loopback addresses.
A critical information disclosure vulnerability in the Hermes plugin dashboard API was exposing sensitive filesystem paths, credential file locations, and configuration details without authentication. The fix redacts this sensitive information from API responses, replacing absolute paths with boolean status indicators to prevent attackers from locating and targeting credential files.
A semgrep audit flagged `devboard/server/index.js` for lacking any CSRF middleware, meaning every state-changing route (`POST`, `PUT`, `DELETE` under `/api/*`) could be triggered by a forged cross-origin request riding on a victim's session cookie. The fix wires in `cookie-parser` and `csurf` right after body parsing, so every mutating request now requires a valid, per-session CSRF token before it reaches route handlers.
A `TapEvent` handler in `scripts/CommandBlock.js` exposed a full administrative command palette — including a `run-javascript` command that piped player-supplied text straight into `new Function(text)()` — behind nothing more than a team-membership check. Any player who happened to share a team with the block could execute arbitrary JavaScript (and, through Rhino's Java bridge, arbitrary host code) inside the game runtime. The fix adds an explicit `if (!e.player.admin) return;` guard at the top
The `/api/adapters` and `/api/list` endpoints in the OneBots framework were registered before authentication middleware, making them publicly accessible to unauthenticated attackers. This critical vulnerability allowed anyone to enumerate all configured adapters, accounts, and sensitive metadata with a simple GET request. The fix ensures these endpoints are protected by the existing auth middleware by correcting route registration order.