CVE-2025-59996
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 · uneditedAn 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 Configuration View 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.
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 · moderate confidenceThis is a stored Cross-Site Scripting (XSS) vulnerability in Juniper Junos Space's Configuration View page. An authenticated attacker can inject malicious script tags into this page that persist and execute when other users (including administrators) visit the compromised page. The injected scripts run in the context of the victim's session, allowing the attacker to perform actions with the target user's privileges.
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< 24.1= 24.1CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Identify Junos Space installation and versionCheck the Junos Space web interface or system information for the installed version number. This is typically visible in the product UI or via CLI access to the appliance.Affected if The installed version is 24.1 or any version below 24.1 (for example, 24.0.x, 23.x, 22.x, etc.)
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Confirm Configuration View page accessNavigate to or enumerate access to the Configuration View page within the Junos Space web interface. This page is typically found in the network management or device configuration section of the UI.Affected if The Configuration View page is accessible to authenticated users in the current deployment
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Review Configuration View page source for injected scriptsAccess the Configuration View page as an authenticated user and view the page source (right-click > View Page Source or browser developer tools). Look for any script tags, javascript: URIs, or event handlers (onclick, onload, onerror, etc.) in user-controllable fields such as device names, configuration descriptions, or other display fields.Affected if Unexpected script tags or javascript event handlers are present in the page source that were not added by the legitimate administrator
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Check browser console for XSS warningsWith browser developer tools open (F12), navigate to the Configuration View page and monitor the Console tab for any XSS-related security warnings or errors.Affected if The browser reports blocked XSS attempts or executes injected script code from the page
A user is affected if they are running Junos Space version 24.1 or any version below 24.1, and the Configuration View page is accessible to authenticated users in their environment.
Generated from the published advisory. Verify against your own configuration.
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 · scoped24.1
Upgrade Junos Space to version 24.1R4 or later. Until a patch is available, limit access to the Configuration View page to trusted users only and monitor for suspicious script injection attempts.
Junos Space 24.1R4 or later
- Back up the current Junos Space configuration and database before starting the upgrade process
- Download Junos Space version 24.1R4 or later from the Juniper Networks support portal (supportportal.juniper.net)
- Follow Juniper's standard Junos Space upgrade procedure: upload the upgrade image via the web interface or CLI, then initiate the upgrade
- After upgrade completion, log in and verify the Junos Space version is 24.1R4 or later
- Clear browser cache and test that the Configuration View page loads correctly to confirm the fix
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-59996 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-59996 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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