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    CVE-2021-21327

    GLPI is an open-source asset and IT management software package that provides ITIL Service Desk features, licenses tracking and software auditing. In GLPI before version 9.5.4 non-authenticated user can remotely instantiate object of any class existing in the GLPI environment that can be used to carry out malicious attacks, or to start a “POP chain”. As an example of direct impact, this vulnerability affects integrity of the GLPI core platform and third-party plugins runtime misusing classes which implement some sensitive operations in their constructors or destructors. This is fixed in version 9.5.4.

    Published:Mar 8, 2021
    Last Modified:Nov 21, 2024
    EPS:Mar 8, 2021
    EPSS Score:0.003
    CVSS Score:6.8

    Affected Products

    Vendor
    Glpi-project
    Product
    Glpi

    Exploits

    http://packetstormsecurity.com/files/161680/GLPI-9.5.3-Unsafe-Reflection.htmlhttp://packetstormsecurity.com/files/161680/GLPI-9.5.3-Unsafe-Reflection.html

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-138 Reflection Injection
    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

    CVE-2026-13490 (CVSS 6.3) — A security vulnerability has been detected in glpi-project glpi 11.0.5/11.0.6/11.0.7. This affects the functio…
    CVE-2026-42321 (CVSS 8.4) — GLPI is a free asset and IT management software package. Starting in version 10.0.4 and prior to version 10.0.…
    CVE-2026-42320 (CVSS 5.9) — GLPI is a free asset and IT management software package. Starting in version 0.50 and prior to versions 10.0.2…
    CVE-2026-42318 (CVSS 7) — GLPI is a free asset and IT management software package. Starting in version 9.5.0 and prior to versions 10.0.…
    CVE-2026-42317 (CVSS 7) — GLPI is a free asset and IT management software package. Starting in version 0.78 and prior to versions 10.0.2…
    CVE-2026-44281 (CVSS 7) — GLPI is a free asset and IT management software package. Starting in version 0.78 and prior to versions 10.0.2…
    CVE-2026-40108 (CVSS 7.1) — GLPI is a free asset and IT management software package. In versions 11.0.0 through 11.0.6, a technician can s…
    CVE-2026-5385 (CVSS 8.4) — An unauthenticated user with write access to the knowledge base can store an XSS payload in a knowledge base i…
    CVE-2026-32312 (CVSS 5.1) — GLPI is a free asset and IT management software package. In versions 11.0.0 through 11.0.6, an authenticated u…
    CVE-2026-29047 (CVSS 7.2) — GLPI is a free asset and IT management software package. From 10.0.0 to before 10.0.24 and 11.0.6, an authenti…

    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