Vulnerability · Published Oct 9, 2025 · Assigned by juniper

CVE-2025-59978Junos Space: Stored cross-site scripting vulnerability in web application

Critical 9.0

In plain English

A critical-severity cross-site scripting in Junos Space from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).

Severity (CVSS 3.1)9.0Critical

Exploit odds (30 days)0.5%top 54.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Juniper Networks Junos Space allows an attacker to store script tags directly in web pages that, when viewed by another user, enable the attacker to execute commands with the target's administrative permissions. This issue affects all versions of Junos Space before 24.1R4.

Affected products (as reported)

Vendor	Product	Versions
Juniper Networks	Junos Space	0 – before 24.1R4

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

References

https://supportportal.juniper.net/JSA103140 vendor-advisory