CVE-2025-59989: 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, 06:26 UTC
- 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: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 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Juniper Networks Junos Space | Affected
| Fixed in– |
AI-suggested
Organizations should immediately plan to upgrade Junos Space to version 24.1R4 or later once available, as this is the definitive fix for the vulnerability. Until patches are applied, implement strict input validation and sanitization on the Device Discovery page to prevent script injection. Deploy Content Security Policy (CSP) headers to restrict execution of unauthorized scripts in the web interface. Limit access to the Junos Space management interface to trusted networks and users, employing network segmentation and multi-factor authentication to reduce exposure. Monitor web server logs and user activity for signs of suspicious script injection or unusual administrative actions. Educate administrators about the risk of phishing or social engineering attempts that could lead to visiting maliciously crafted pages. Regularly review Juniper Networks security advisories for updates or additional mitigation guidance. Consider deploying web application firewalls (WAFs) that can detect and block XSS attack patterns targeting the management interface.
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 Device Discovery 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.