{"cve":"CVE-2021-21327","nvd":{"published":"2021-03-08T17:15:13.197","modified":"2026-06-17T03:35:18.280","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-470","CWE-862"],"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"],"products":["glpi-project:glpi"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2021-21327","score":0.0247,"percentile":0.84513,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}