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    CVE-2026-77991

    Joomla Extension - joomlaeventmanager.net - Privileged remote code execution in Joomla Event Manager < 5.0.1 - The administrator source model allows to write dangerous file type incl. PHP, leading to remote code execution.

    Published:Aug 27, 2026
    Last Modified:Aug 28, 2026
    EPS:Aug 27, 2026
    EPSS Score:0.00414
    CVSS Score:9.4

    Affected Products

    Vendor
    Joomlaeventmanager.net
    Product
    Jem - Joomla Event Manager Extension For Joomla

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs

    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