CVE-2025-59997: 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 25 Oct 2026, 19:02 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 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Juniper Networks Junos Space | Affected
| Fixed in– |
AI-suggested
Organizations should prioritize upgrading Junos Space to version 24.1R4 or later as soon as it becomes available to address this vulnerability. In the interim, restrict access to the Junos Space web interface to trusted administrators and use network segmentation to limit exposure. Implement web application firewalls (WAFs) with rules designed to detect and block XSS payloads targeting the CLI Configlets pages. Conduct thorough input validation and output encoding on any custom integrations or scripts interacting with Junos Space to reduce injection risks. Educate users about the risks of clicking on untrusted links or visiting suspicious pages within the management interface. Monitor logs and network traffic for unusual activity indicative of attempted exploitation, such as unexpected script execution or configuration changes. Employ multi-factor authentication (MFA) for Junos Space access to reduce the impact of compromised credentials. Finally, maintain an incident response plan tailored to network management platform compromises.
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 CLI Configlets 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.