Overview
CVE-2026-7091 describes a Broken Function Level Authorization vulnerability in Code-Projects Invoice System built on Laravel 1.0, where an attacker could remotely trigger internal functions by supplying a function name in the request, leading to improper access controls (CWE-266, CWE-285). This flaw allows an adversary to bypass per-function access checks and execute actions that should be restricted, such as viewing or deleting user data. The exploit relies on a dynamic function dispatcher within a controller that calls methods based on user-supplied input, effectively “opening” private or admin-only actions to unauthorized users. In real deployments, this creates a high risk of data exposure, modification, or service disruption through unauthorized function calls. References to CVE-2026-7091 should be used to triage affected deployments and verify whether a dynamic dispatcher exists in the User Management Handler or similar components exposed via /user endpoints. The vulnerability aligns with CWE-285 (Implicit Access Control) and CWE-266 (Incorrect Privilege), illustrating how function-level authorization can be bypassed when a single entry point delegates to multiple internal methods without proper checks. The class of vulnerability manifests in Laravel when controllers expose a generic dispatcher or rely on client-supplied function names without enforcing per-action authorization or explicit route-level guards. Developers must shift to explicit, policy-driven access for every function and avoid unbounded method invocation from request data.
Affected Versions
Laravel 1.0 (Code-Projects Invoice System)
Code Fix Example
Laravel API Security Remediation
Vulnerable pattern (dynamic function dispatch without per-function authorization):
class UserManagementHandler extends Controller {
public function handleFunction(Request $request) {
$func = $request->input('function'); // attacker-controlled
if (method_exists($this, $func)) {
return $this->$func($request);
}
return response()->json(['error' => 'Invalid'], 400);
}
public function deleteUser(Request $request) {
$id = $request->input('id');
User::where('id', $id)->delete(); // no auth check
return response()->json(['deleted' => true]);
}
public function viewUser(Request $request) {
$id = $request->input('id');
return User::findOrFail($id);
}
}
Fixed pattern (explicit actions with per-function authorization):
class UserManagementHandler extends Controller {
public function handleFunction(Request $request) {
$func = $request->input('function');
$allowed = ['viewUser','updateUser']; // whitelist
if (!in_array($func, $allowed)) {
abort(403);
}
// Optional per-function policy enforcement can be inside each method
return $this->$func($request);
}
public function deleteUser(Request $request) {
// Per-function guard: only admins can delete
abort_if(!auth()->check() || !auth()->user()->isAdmin(), 403);
$id = $request->input('id');
$user = User::findOrFail($id);
$user->delete();
return response()->json(['deleted' => true]);
}
public function viewUser(Request $request) {
// Ensure the caller is allowed to view this user (policy/gate can be used here)
$id = $request->input('id');
$user = User::findOrFail($id);
// Example: enforce policy at the action level
$this->authorize('view', $user);
return response()->json($user);
}
}