CVE-2021-21326— Horizontal Privilege Escalation
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I. Basic Information for CVE-2021-21326
Vulnerability Information
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Vulnerability Title
Horizontal Privilege Escalation
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
GLPI 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GLPI是个人开发者的一款开源IT和资产管理软件。该软件提供功能全面的IT资源管理接口，你可以用它来建立数据库全面管理IT的电脑，显示器，服务器，打印机，网络设备，电话，甚至硒鼓和墨盒等。 GLPI 存在安全漏洞，该漏洞源于可以在不启用委托系统的情况下，使用自助界面为另一个用户创建票据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| glpi-project | glpi | < 9.5.4 | - |
II. Public POCs for CVE-2021-21326
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://github.com/glpi-project/glpi/releases/tag/9.5.4x_refsource_MISC
- https://github.com/glpi-project/glpi/security/advisories/GHSA-vmj9-cg56-p7whx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-21326
Same Patch Batch · glpi-project · 2021-03-08 · 4 CVEs total
| CVE-2021-21327 | 6.8 MEDIUM | Unsafe Reflection in getItemForItemtype() |
| CVE-2021-21324 | 6.8 MEDIUM | Insecure Direct Object Reference (IDOR) on "Solutions" |
| CVE-2021-21325 | 6.2 MEDIUM | Stored XSS in budget type |
IV. Related Vulnerabilities
Same product: glpi
- CVE-2026-29047
GLPI has an Authenticated SQL Injection via log exports - CVE-2026-26263
GLPI has an Unauthenticated SQL Injection via Search engine - CVE-2026-26027
GLPI has an Unauthenticated Stored XSS via inventory - CVE-2026-26026
GLPI has a Server-Side Template Injection via Double-Compila - CVE-2026-25932
GLPI has Stored XSS in Supplier 'Website' field
Same vendor: glpi-project
- CVE-2026-29047
GLPI has an Authenticated SQL Injection via log exports - CVE-2026-26263
GLPI has an Unauthenticated SQL Injection via Search engine - CVE-2026-26027
GLPI has an Unauthenticated Stored XSS via inventory - CVE-2026-26026
GLPI has a Server-Side Template Injection via Double-Compila - CVE-2026-25932
GLPI has Stored XSS in Supplier 'Website' field
Same weakness: CWE-862
- CVE-2021-47932
WordPress TheCartPress 1.5.3.6 Privilege Escalation Unauthen - CVE-2025-15634
HCL BigFix WebUI is affected by a missing authorization vuln - CVE-2026-42297
Argo Workflows Is Missing Authorization in Sync ConfigMap Pr - CVE-2026-42174
Kirby: User avatar creation, replacement and deletion are no - CVE-2026-42137
Kirby: `pages.access/list` and `files.access/list` permissio
V. Comments for CVE-2021-21326
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