CVE-2025-59981
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 Device Template Definition 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 · high confidenceThis is a stored Cross-site Scripting (XSS) vulnerability in Juniper Networks Junos Space's Device Template Definition page. An authenticated attacker can inject malicious script tags into template definitions that persist on the page. When other users (including administrators) view these templates, the injected JavaScript executes in their browser context, allowing the attacker to execute commands with the victim'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 versionLog into the Junos Space web interface and navigate to the Administration > System > Software page, or use the CLI command 'show version' on the Junos Space appliance. Locate the displayed version number.Affected if The version is shown as less than 24.1 or exactly 24.1 (for example: 24.1, 23.4, 23.3R1, etc.)
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Confirm Device Template Definition accessNavigate to the Device Template Definition page within the Junos Space web interface. This is typically found under the Templates or Device Management section.Affected if The page loads successfully and displays template definition fields, indicating the vulnerable feature is accessible in the environment
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Review existing template definitions for script tagsExamine all saved template definitions on the Device Template Definition page. Inspect each template field (name, description, configuration parameters) for unexpected characters such as <script>, javascript:, onload, onerror, or other HTML/script tags.Affected if Any template definition contains visible script tags, encoded script elements, or suspicious JavaScript event handlers in its fields
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Check browser console for XSS errorsOpen the Device Template Definition page in a web browser, then open the browser's developer console (F12). Look for any script execution errors or warnings that may indicate injected scripts are present.Affected if The console displays script-related errors or unexpected JavaScript execution stemming from template content
A user is affected if their Junos Space version is less than 24.1 or exactly 24.1, the Device Template Definition page is accessible, and any template contains injected script tags or suspicious code.
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 to Junos Space version 24.1R4 or later to obtain the patch. Until upgrade is possible, restrict access to the Device Template Definition page and implement strict input validation on all template definition fields.
24.1R4 (or any subsequent release)
- 1. Back up the current Junos Space configuration and database using the built-in backup functionality
- 2. Download the Junos Space 24.1R4 (or later) upgrade package from the Juniper Networks support portal at supportportal.juniper.net
- 3. Log in to the Junos Space web interface as an administrator
- 4. Navigate to the Administration section and locate the Software Upgrade or Maintenance option
- 5. Upload the 24.1R4 upgrade package to the Junos Space platform
- 6. Follow the on-screen prompts to initiate and complete the upgrade process
- 7. After upgrade completes, verify the Junos Space version shows 24.1R4 or later
- 8. Log in to the Device Template Definition page to confirm the XSS vulnerability is remediated
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-59981 — 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-2025-59981 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
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- Version or environment caveats, and links to real fixes
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