CVE-2018-1000225
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 · uneditedCobbler version Verified as present in Cobbler versions 2.6.11+, but code inspection suggests at least 2.0.0+ or possibly even older versions may be vulnerable contains a Cross Site Scripting (XSS) vulnerability in cobbler-web that can result in Privilege escalation to admin.. This attack appear to be exploitable via "network connectivity". Sending unauthenticated JavaScript payload to the Cobbler XMLRPC API (/cobbler_api).
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 confidenceCobbler-web contains a reflected XSS vulnerability allowing unauthenticated attackers to send malicious JavaScript payloads via the /cobbler_api XMLRPC endpoint. The XSS is reflected back through the web interface without proper output encoding, enabling session hijacking and privilege escalation to admin 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 dataall versionsCVSS 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:3.0/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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Verify cobbler-web is installedCheck for cobbler-web package or service: rpm -qa | grep cobbler or systemctl status cobblerd or ps aux | grep cobblerAffected if cobbler-web or cobblerd service is present on the system
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Confirm XMLRPC API endpoint is accessibleCheck if port 25151 is listening or test connectivity to the /cobbler_api endpoint: curl -k https://localhost:25151/cobbler_api or check firewall rules for inbound accessAffected if XMLRPC endpoint is reachable from network or localhost
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Check if web interface exposes XMLRPC dataInspect cobbler-web configuration files (typically in /etc/cobbler or /var/www/cobbler) for web settings and verify the web UI is enabledAffected if cobbler-web UI is enabled and running
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Test for reflected XSS behaviorSend a crafted XMLRPC request with a test payload (e.g., <script>alert(1)</script>) to the API endpoint and observe if it is reflected unescaped in the web interface responseAffected if XMLRPC API response data is reflected in the web interface without HTML encoding
If cobbler-web is running with the XMLRPC API accessible and rendering API responses in the web UI without output encoding, the environment is affected by this reflected XSS vulnerability.
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.
From vendor dataImplement proper output encoding/escaping for all data rendered in cobbler-web interface, particularly data originating from XMLRPC API responses. Consider adding input validation on the XMLRPC endpoint and implementing CSP headers.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 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 $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-1000225 — 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-2018-1000225 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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