Skip to main content
VulnerabilityPublished

CVE-2025-59990: Juniper Networks Junos Space · XSS or 'Cross-site Scripting'

Affects Juniper Networks Junos SpaceSource CVE Database V5

0

Not known to be exploited · CVSS 6.1 Medium.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score
6.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 34% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Oct 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Juniper Networks Junos SpaceAffected
  • =0
Fixed in–

AI-suggested

  1. Apply the official Juniper Networks patch or upgrade to Junos Space version 24.1R4 or later as soon as it becomes available.
  2. Until patches are applied, restrict access to the Junos Space management interface using network segmentation, VPNs, or IP whitelisting to limit exposure to trusted users only.
  3. Implement strict input validation and sanitization on all user-supplied data in template creation pages to prevent script injection.
  4. Deploy Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts within the Junos Space web interface.
  5. Educate users, especially administrators, to be cautious about interacting with untrusted links or templates within the management interface.
  6. Monitor logs and network traffic for unusual activities or attempts to exploit XSS vulnerabilities.
  7. Consider deploying Web Application Firewalls (WAF) with rules targeting XSS attack patterns on the management interface endpoints.

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 template creation pages that, when visited by another user, enable the attacker to execute commands with the target's permissions, including an administrator. This issue affects all versions of Junos Space before 24.1R4.

References

Community reviews

Loading reviews…