CVE-2018-20596
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 · uneditedJspxcms v9.0.0 allows SSRF.
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 confidenceJspxcms v9.0.0 contains a Server-Side Request Forgery (SSRF) vulnerability that allows attackers to induce the server to make arbitrary requests to internal or external resources. This can expose internal services, cloud metadata endpoints, and bypass network segmentation.
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= 9.0.0CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 Jspxcms installation and versionLocate the Jspxcms installation directory or WAR file. Check for version files, the admin dashboard 'About' page, or examine the WAR/JAR file name and manifest for version '9.0.0'. If deployed in a servlet container, check the application deployment descriptor or context path for version information.Affected if The installed Jspxcms version is exactly 9.0.0
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Locate URL-fetching functionalityReview the application for features that accept user-supplied URLs, such as link previews, URL validators, webhook integrations, file import from URLs, or any API endpoints that accept a URL parameter and retrieve content server-side.Affected if A URL-fetching feature is present and accessible to users without authentication, or accessible to low-privilege users
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Check network exposure of vulnerable endpointIdentify which network paths can reach the application (e.g., public internet, internal network only). Determine if the SSRF-vulnerable endpoint is reachable from untrusted network segments.Affected if The application or its URL-fetching endpoint is accessible from untrusted networks such as the public internet or less-trusted internal segments
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Inspect request parameters for URL handlingIf URL-fetching features exist, examine the application's HTTP request parameters, headers, and API endpoints that accept URLs. Look for endpoints that process or fetch content from supplied URLs without strict allow-listing.Affected if The application accepts arbitrary URLs in request parameters without validated allow-listing or protocol restrictions
A user is affected if their Jspxcms installation is exactly version 9.0.0 AND a URL-fetching feature is exposed to users or untrusted network paths without strict URL allow-listing.
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 dataUpdate to a patched version of Jspxcms if available. If no patch exists, implement strict URL allow-listing, disable unnecessary URL protocols, validate all user-supplied URLs server-side, and restrict outbound requests through network segmentation.
- Consultation3.0 h
- Implementation6.0 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 $4,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-20596 — 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-2018-20596 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data