CVE-2025-59987
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 arbitrary device search field 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 where an attacker can inject malicious script tags into the device search field. When other users (including administrators) access or view this search functionality, the injected scripts execute with the victims' permissions, potentially allowing command execution.
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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Check Junos Space versionLog into the Junos Space web UI and navigate to Administration > System > Software/Management to view the current version, or access the CLI and run the appropriate command to display the software versionAffected if Installed version is earlier than 24.1 or exactly version 24.1
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Confirm device search feature existsNavigate to the device search or device inventory search field within the Junos Space web interfaceAffected if The device search functionality is present and accessible in the environment
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Review search field for injected contentExamine the device search field, search history, or associated database records for any suspicious characters such as <script>, javascript:, or onload/onerror event handlers that may indicate a stored XSS payloadAffected if Unexpected HTML or script tags are found stored in or submitted through the device search field
The environment is affected if Junos Space version is less than 24.1 or exactly 24.1 AND the device search feature is accessible to users.
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 to obtain the patch for this vulnerability.
24.1R4 or later
- 1. Verify current Junos Space version by navigating to Administration > Applications > Application Version in the web UI
- 2. Create a full backup of Junos Space including all configurations and data
- 3. Download Junos Space 24.1R4 or later from the Juniper Networks support portal (supportportal.juniper.net)
- 4. Upload the upgrade image to Junos Space via the web interface (Administration > Images)
- 5. Initiate the upgrade following the Junos Space upgrade guide - this typically involves selecting the image and starting the upgrade process
- 6. Allow sufficient time for the upgrade to complete - do not interrupt the process
- 7. After upgrade completes, verify the version shows 24.1R4 or later
- 8. Test the device search functionality 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 / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-59987 — 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-2025-59987 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
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