CVE-2025-59993: Juniper Networks Junos Space · XSS or 'Cross-site Scripting'
Affects Juniper Networks Junos SpaceSource CVE Database V5
Not known to be exploited · CVSS 6.1 Medium.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 12% 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:NExploitation evidence
Disclosed: evidence found.
CVE published 9 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| Juniper Networks Junos Space | Affected
| Fixed in– |
AI-suggested
To mitigate CVE-2025-59993, European organizations should immediately upgrade Junos Space to version 24.1R4 or later, where the vulnerability is patched. In the absence of an available patch, organizations should implement strict input validation and sanitization controls on the Space Node Setting fields, if customization is possible. Network segmentation should be employed to restrict access to the Junos Space management interface to trusted administrative networks only. Multi-factor authentication (MFA) should be enforced for all Junos Space users to reduce the risk of session hijacking. Monitoring and logging of administrative access and unusual activities within Junos Space should be enhanced to detect potential exploitation attempts. Additionally, user awareness training should emphasize the risks of interacting with untrusted links or content within the management interface. Employing web application firewalls (WAFs) with rules targeting XSS payloads can provide an additional layer of defense. Regular vulnerability scanning and penetration testing focused on web interfaces can help identify residual or similar vulnerabilities.
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 Space Node Setting fields 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.