Livewire: Authorization bypass in #[Authorize] via reordered parameter keys and #[Json] execution order

{
  "id": "e24615b449b7cfc8b6849c806a2d141e4250fc82e51ed5905559538a65622f24",
  "url": "https://osv.dev/vulnerability/GHSA-mhf7-xp6r-6qrc",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Livewire: Authorization bypass in #[Authorize] via reordered parameter keys and #[Json] execution order",
    "summary": "### Impact Three issues allowed actions protected by the `#[Authorize]` attribute to run against records the current user is not authorized for: 1. **Out-of-order parameter keys on actions.** `#[Authorize]` resolved a model parameter by its array key, while the action itself received parameters positionally. A request sending params as an object with reordered integer keys (e.g. `{\"1\": 2, \"0\": 1}`) could pass authorization with a record the user owns while the action received a different record. With `#[Authorize('delete', 'comment')]` on `deleteComment(Comment $comment)`, a user could delete another user's comment. 2. **The same issue on event listeners.** Methods using both `#[On]` and `#[Authorize]` with a model parameter were affected in the same way through the `__dispatch` call. 3. **`#[Json]` methods ran before authorization.** When a method had both `#[Json]` and `#[Authorize]`, the method body executed before the authorization check. The response was still a 403, but any side effects (such as database writes) had already happened. Only applications using the `#[Authorize]` attribute are affected: on methods that take model parameters (issues 1 and 2), or on `#[Json]` methods (issue 3). Authorization performed inside the method (e.g. `$this->authorize(...)`) is not affected. Livewire 3.x is not affected. ### Patches Fixed in **v4.4.8**. Call and event parameters must now be a list or use named (string) keys, otherwise the request is rejected, and `#[Json]` methods are",
    "evidence": "osv:GHSA-mhf7-xp6r-6qrc",
    "products": [
      {
        "name": {
          "value": "livewire/livewire",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.4.8",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "v4.3.0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v4.3.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v4.3.2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v4.3.3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v4.3.4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v4.3.5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v4.4.0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v4.4.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v4.4.2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v4.4.3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v4.4.4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v4.4.5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v4.4.6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v4.4.7",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "GHSA-mhf7-xp6r-6qrc",
      "aliases": [
        "GHSA-mhf7-xp6r-6qrc"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.3.0"
                },
                {
                  "fixed": "4.4.8"
                }
              ]
            }
          ],
          "package": {
            "name": "livewire/livewire",
            "purl": "pkg:composer/livewire/livewire",
            "ecosystem": "Packagist"
          },
          "versions": [
            "v4.3.0",
            "v4.3.1",
            "v4.3.2",
            "v4.3.3",
            "v4.3.4",
            "v4.3.5",
            "v4.4.0",
            "v4.4.1",
            "v4.4.2",
            "v4.4.3",
            "v4.4.4",
            "v4.4.5",
            "v4.4.6",
            "v4.4.7"
          ],
          "database_specific": {
            "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-mhf7-xp6r-6qrc/GHSA-mhf7-xp6r-6qrc.json"
          }
        }
      ],
      "modified": "2026-10-23T21:00:04.354707498Z",
      "provider": "osv",
      "references": [
        "https://github.com/livewire/livewire/security/advisories/GHSA-mhf7-xp6r-6qrc",
        "https://github.com/livewire/livewire/commit/822a4fa9b1e1123691133a2e2eb379a3dab11191",
        "https://github.com/livewire/livewire",
        "https://github.com/livewire/livewire/releases/tag/v4.4.8"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-863"
        ],
        "severity": "MODERATE",
        "github_reviewed": true,
        "nvd_published_at": null,
        "github_reviewed_at": "2026-10-23T20:51:30Z"
      }
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 427021,
  "published_at": "2026-10-23T20:51:30+00:00"
}