CVE-2026-21904CWE-79

Junos Space: ilpFilter field on nLegacy.jsp is vulnerable to reflected cross-site script injection

Medium · published April 9, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
10.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
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
EPSS
0.00210 · 10.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-04-09T21:26Z
EPSS history
Timeline
  • 09 APR 21:26Z
    Junos Space: ilpFilter field on nLegacy.jsp is vulnerable to reflected cross-site script injection
    cvelistv5