CVE-2021-21258— XSS injection in ajax/kanban
Quick assessment
Affected
glpi-project glpi
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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 from version 9.5.0 and before version 9.5.4 存在跨站脚本漏洞，该漏洞源于使用ajax kanban.php时存在跨站点脚本注入漏洞。
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2021-21258
Vulnerability Information
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Vulnerability Title
XSS injection in ajax/kanban
Source: CVE Program / CVE List V5
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 from version 9.5.0 and before version 9.5.4, there is a cross-site scripting injection vulnerability when using ajax/kanban.php. This is fixed in version 9.5.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
GLPI 跨站脚本漏洞
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 from version 9.5.0 and before version 9.5.4 存在跨站脚本漏洞，该漏洞源于使用ajax kanban.php时存在跨站点脚本注入漏洞。
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 | >= 9.5.0, < 9.5.4 | - |
|
II. Public POCs for CVE-2021-21258
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2021-21258 (1)
Vendor Advisories for CVE-2021-21258 (1)
-
https://github.com/glpi-project/glpi/security/advisories/GHSA-j4xj-4qmc-mmmx x_refsource_CONFIRM
IV. Related Vulnerabilities
Same product: glpi
-
CVE-2026-108726
GLPI through 12.0.0 Missing Authorization via ajax/map.php -
CVE-2026-53629
GLPI: SQL injection in history tab -
CVE-2026-53626
GLPI: Arbitrary Document Read via Form Context Authorization -
CVE-2026-48482
GLPI: RCE via Form import -
CVE-2026-53625
GLPI: Privilege Escalation via authtype API manipulation
Same vendor: glpi-project
-
CVE-2026-108726
GLPI through 12.0.0 Missing Authorization via ajax/map.php -
CVE-2026-53629
GLPI: SQL injection in history tab -
CVE-2026-53626
GLPI: Arbitrary Document Read via Form Context Authorization -
CVE-2026-48482
GLPI: RCE via Form import -
CVE-2026-53625
GLPI: Privilege Escalation via authtype API manipulation
Same weakness: CWE-79
-
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V. Comments for CVE-2021-21258
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