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    CVE-2026-33698

    Chamilo LMS is a learning management system. Prior to 1.11.38, a chained attack can enable otherwise-blocked PHP code from the main/install/ directory and allow an unauthenticated attacker to modify existing files or create new files where allowed by system permissions. This only affects portals with the main/install/ directory still present and read-accessible. This vulnerability is fixed in 1.11.38.

    Published:Apr 10, 2026
    Last Modified:Apr 16, 2026
    EPS:Apr 10, 2026
    EPSS Score:0.00069
    CVSS Score:9.8

    Affected Products

    Vendor
    Chamilo
    Product
    Chamilo Lms

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-150 Collect Data from Common Resource Locations
    CAPEC-639 Probe System Files

    Related CVEs

    CVE-2026-34239 (CVSS 7.5) — Chamilo version 1.11.40 and earlier are vulnerable to authenticated remote code execution in the main/inc/ajax…
    CVE-2026-39878 (CVSS 9.3) — Chamilo LMS versions 1.11.38 and earlier contain a stored cross-site scripting vulnerability in the user regis…
    CVE-2026-40291 (CVSS 8.8) — Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an insecure direct …
    CVE-2026-35196 (CVSS 8.8) — Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, an OS Command Injec…
    CVE-2026-34602 (CVSS 7.1) — Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, the /api/course_rel…
    CVE-2026-34370 (CVSS 6.5) — Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, the notebook module…
    CVE-2026-34161 (CVSS 5.1) — Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, a Stored Cross-Site…
    CVE-2026-34160 (CVSS 8.6) — Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, the PENS (Package E…
    CVE-2026-33715 (CVSS 7.2) — Chamilo LMS is an open-source learning management system. In version 2.0-RC.2, the file public/main/inc/ajax/i…
    CVE-2026-33714 (CVSS 7.1) — Chamilo is an open-source learning management system (LMS). Version 2.0.0-RC.2 contains a SQL Injection vulner…

    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