What’s Vulnerable › Vulnerabilities

CVE-2021-21327: Unsafe Reflection in getItemForItemtype()

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-03-08 · updated 2026-06-17
• Weakness: CWE-862

Description

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.

Affected products

• glpi-project glpi: before 9.5.4 — fixed in 9.5.4

How to fix

Upgrade to a fixed version: glpi-project glpi 9.5.4. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/161680/GLPI-9.5.3-Unsafe-Reflection.html
• https://github.com/glpi-project/glpi/releases/tag/9.5.4
• https://github.com/glpi-project/glpi/security/advisories/GHSA-qmw7-w2m4-rjwp
• http://packetstormsecurity.com/files/161680/GLPI-9.5.3-Unsafe-Reflection.html
• https://github.com/glpi-project/glpi/releases/tag/9.5.4
• https://github.com/glpi-project/glpi/security/advisories/GHSA-qmw7-w2m4-rjwp

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