CVE-2026-21904
Junos Space: ilpFilter field on nLegacy.jsp is vulnerable to reflected cross-site script injection
- State
- Published
- Severity
- 5.1 Medium
- Published
- Apr 9, 2026
- Updated
- Apr 10, 2026
- Reserved
- Jan 5, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N | juniper |
| 3.1 | 6.1 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | juniper |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
Junos SpaceJuniper Networks |
|
References
- https://kb.juniper.net/JSA106003vendor-advisory
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