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I. Basic Information for CVE-2026-21904
Vulnerability Information

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Vulnerability Title
Junos Space: ilpFilter field on nLegacy.jsp is vulnerable to reflected cross-site script injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Juniper Networks Junos Space allows an attacker to inject script tags in the list filter field that, when visited by another user, enables the attacker to execute commands with the target's permissions, including an administrator. This issue affects all versions of Junos Space before 24.1R5 Patch V3.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
Juniper Networks Junos Space 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper Networks Junos Space是美国瞻博网络(Juniper Networks)公司的一套网络管理解决方案。该方案支持在设备和服务的整个生命周期内对其进行自动配置、监控和故障排除。 Juniper Networks Junos Space 24.1R5 Patch V3之前版本存在跨站脚本漏洞,该漏洞源于列表过滤器字段输入中和不当,可能导致跨站脚本攻击,使攻击者能够以目标用户权限执行命令。
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
VendorProductAffected VersionsCPESubscribe
Juniper NetworksJunos Space 0 ~ 24.1R5 Patch V3 -
II. Public POCs for CVE-2026-21904
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III. Intelligence Information for CVE-2026-21904
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