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VulnerabilityPublished

CVE-2025-59983: 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, 14:05 UTC

CVSS 3.1 base score
6.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 19% 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

European organizations should immediately inventory their Junos Space deployments to identify affected versions prior to 24.1R4. Although no official patches are currently available, organizations should monitor Juniper Networks advisories for forthcoming updates and apply them promptly once released. In the interim, restrict access to the Junos Space web interface to trusted personnel and networks, ideally via VPN or zero-trust network access solutions. Implement strict input validation and sanitization controls where possible to prevent injection of malicious scripts. Educate users, especially administrators, about phishing and social engineering risks to reduce likelihood of interaction with malicious pages. Employ web application firewalls (WAFs) with rules to detect and block XSS payloads targeting Junos Space interfaces. Regularly audit user permissions to ensure least privilege principles are enforced, limiting potential damage from compromised accounts. Finally, enable logging and monitoring of Junos Space web interface activity to detect suspicious behavior early.

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 Definition page, 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 24.1R4.

References

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