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CVE-2025-59999VulnerabilityPublished

CVE-2025-59999: 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 25 Oct 2026, 19:02 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 14% 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 2026-10-25.

What to do

Affected software

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

AI-suggested

1. Apply the official Juniper Networks patch for Junos Space 24.1R4 or later as soon as it becomes available. 2. Until patching is possible, restrict access to the Junos Space management interface to trusted networks and users only, using network segmentation and firewall rules. 3. Implement strict Content Security Policy (CSP) headers to limit the execution of unauthorized scripts within the Junos Space web interface. 4. Conduct regular input validation and sanitization on all user-supplied data, particularly on the API Access Profiles page, to prevent script injection. 5. Educate administrators and users to avoid clicking on suspicious links or visiting untrusted pages within the management interface. 6. Monitor logs and network traffic for unusual activity indicative of attempted exploitation or unauthorized command execution. 7. Consider deploying Web Application Firewalls (WAFs) with rules to detect and block XSS payloads targeting Junos Space. 8. Review and limit user permissions within Junos Space to the minimum necessary to reduce potential damage from compromised accounts.

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 API Access Profiles page 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 24.1R4.

References

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