CVE-2025-59999
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 API Access Profiles 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 confidenceA stored cross-site scripting (XSS) vulnerability exists in Juniper Networks Junos Space where an attacker can inject malicious script tags into the API Access Profiles page. When other users subsequently visit the compromised page, the injected scripts execute with the victims' session privileges, potentially allowing command execution with administrator permissions.
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 versionLocate the installed Junos Space version via the web interface (typically displayed in the login page footer or under System > Software) or CLI command that shows the versionAffected if The installed version is lower than 24.1 or exactly version 24.1
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Confirm API Access Profiles feature is presentVerify that the API Access Profiles functionality exists in the Junos Space environment by navigating to the relevant section in the web interface or checking the configurationAffected if The API Access Profiles page is present and accessible in the environment
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Inspect API Access Profiles for injected contentAccess the API Access Profiles page and review all profiles for any unexpected or suspicious script tags, JavaScript code, or HTML content in profile name or configuration fieldsAffected if Any profile contains script tags or suspicious code that was not intentionally configured by an administrator
A user is affected if Junos Space version is 24.1 or lower AND the API Access Profiles page is accessible 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 to address this vulnerability. Until then, limit access to the API Access Profiles page to trusted users only.
24.1R4 or later
- 1. Log in to the Junos Space Web UI with administrator privileges
- 2. Navigate to the Administration > API Access Profiles page where the XSS vulnerability exists
- 3. Create a backup of the current Junos Space configuration
- 4. Download the Junos Space 24.1R4 (or later) upgrade image from the Juniper support portal at supportportal.juniper.net
- 5. Navigate to Administration > Software Management > Upgrade
- 6. Upload the 24.1R4 upgrade image and initiate the upgrade process
- 7. Wait for the upgrade to complete and verify all services are running
- 8. Log back in and verify the API Access Profiles page is accessible and functioning correctly
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-59999 — 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-2025-59999 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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