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Junos SpaceApplication · Juniper

CVE-2025-59998

MEDIUM · 6.1 CVSS v3.1 Published 2025-10-09
Fix available
A fix is available. Upgrade to 24.1 or later.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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 Archive Log screen 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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A stored cross-site scripting (XSS) vulnerability exists in the Archive Log screen of Juniper Networks Junos Space. An authenticated attacker can inject malicious script tags into the Archive Log functionality that persist and execute when other users (including administrators) view the affected page, allowing the attacker to hijack sessions and execute commands with the victim's privileges.

MitigationUpgrade Junos Space to version 24.1R4 or later to obtain the patch. Until upgrade is possible, implement input validation and output encoding on the Archive Log screen and consider deploying a WAF with XSS detection rules.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Junos SpaceApplication
Affected:< 24.1= 24.1

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Junos Space version
    Access the Junos Space web UI and navigate to the Administration > System > Software or About page to view the installed version number. Alternatively, use the CLI command 'show version' on the Junos Space device if accessible.
    Affected if The installed version is lower than 24.1 or exactly 24.1 (versions < 24.1 or = 24.1 are affected)
  2. Confirm Archive Log access
    Navigate to the Archive Log screen within the Junos Space web UI. This is typically found under the Reports or Logging section. Verify you can access this functionality with your authenticated account.
    Affected if The Archive Log screen is accessible and available in the environment
  3. Inspect Archive Log for injected content
    View the Archive Log entries and examine the log message fields (such as description, source, or message content) for any unexpected HTML tags, JavaScript code, or suspicious characters like <script>, <img onerror=, javascript:, or encoded payloads.
    Affected if Any Archive Log entries contain unescaped HTML or JavaScript code that could execute in a browser
  4. Check for unauthorized session activity
    Review Junos Space audit logs or session logs for any actions performed by users with elevated privileges that you did not initiate, particularly around the time frame the Archive Log was accessible to untrusted users.
    Affected if Unexpected administrative actions appear in logs that coincide with the period the Archive Log screen was accessible

You are affected if your Junos Space version is 24.1 or any version below 24.1 AND the Archive Log screen is accessible in your environment.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 24.1 or later
Fixed in 24.1
Interim mitigation

Upgrade Junos Space to version 24.1R4 or later to obtain the patch. Until upgrade is possible, implement input validation and output encoding on the Archive Log screen and consider deploying a WAF with XSS detection rules.

Recommended fix High confidence

24.1R4

  1. Back up the current Junos Space configuration and ensure you have a recovery mechanism in place
  2. Log in to the Juniper Networks support portal (supportportal.juniper.net) and download the Junos Space 24.1R4 upgrade package
  3. Upload the 24.1R4 upgrade package to the Junos Space platform using the web interface or CLI
  4. Initiate the upgrade process through the Junos Space web UI or via the command line interface
  5. Monitor the upgrade progress and allow the system to reboot as necessary
  6. After the upgrade completes, log in and verify the Junos Space version shows 24.1R4
  7. Confirm the Archive Log screen is functioning correctly and the XSS vulnerability is remediated by testing with benign input
Caveat Review Juniper release notes for 24.1R4 for any known compatibility issues or configuration changes before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Junos Space Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,640
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-59998 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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