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    CVE-2026-39878

    Chamilo LMS versions 1.11.38 and earlier contain a stored cross-site scripting vulnerability in the user registration form that allows any unauthenticated attacker to execute arbitrary JavaScript in an administrator's browser session, leading to full platform admin account takeover. This has been patched in 1.11.40.

    Published:Jul 20, 2026
    Last Modified:Aug 21, 2026
    EPS:Jul 20, 2026
    EPSS Score:0.00236
    CVSS Score:9.3

    Affected Products

    Vendor
    Chamilo
    Product
    Chamilo Lms

    Exploits

    No exploit reference

    Related CVEs

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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