XSS in Juniper Space Security Director

CVE-2025-59974

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Junos Space Security Director allows an attacker to inject malicious scripts into the application, which are then stored and executed in the context of other users' browsers when they access affected pages.This issue affects Juniper Security Director:  * All versions before 24.1R4.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (31.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 31.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-59974: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-59974?
CVE-2025-59974 is a high-severity vulnerability in Juniper Space Security Director, classified under Cross-site Scripting. CVSS score: 8.4/10. Published 2025-10-09.
How severe is CVE-2025-59974?
High severity. CVSS v3 base score is 8.4 out of 10.