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    CVE-2019-25714

    Seeyon OA A8 contains an unauthenticated arbitrary file write vulnerability in the /seeyon/htmlofficeservlet endpoint that allows remote attackers to write arbitrary files to the web application root by sending specially crafted POST requests with custom base64-encoded payloads. Attackers can write JSP webshells to the web root and execute them through the web server to achieve arbitrary OS command execution with web server privileges. Exploitation evidence was first observed by the Shadowserver Foundation on 2021-03-26 (UTC).

    Published:Apr 21, 2026
    Last Modified:Jul 28, 2026
    EPS:Apr 21, 2026
    EPSS Score:0.00653
    CVSS Score:9.3

    Affected Products

    Vendor
    Ibm
    Product
    Collaborative Lifecycle Management
    Vendor
    Seeyon Internet Software
    Product
    A8+ Collaborative Management Software
    Vendor
    Seeyon Internet Software
    Product
    A8-v5 Collaborative Management Software

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High