CVE-2023-31456
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 · uneditedThere is an SSRF vulnerability in the Fluid Topics platform that affects versions prior to 4.3, where the server can be forced to make arbitrary requests to internal and external resources by an authenticated user.
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 Server-Side Request Forgery (SSRF) vulnerability in the Fluid Topics platform affecting versions prior to 4.3. An authenticated user can exploit this flaw to force the server to make arbitrary HTTP requests to both internal infrastructure and external resources, potentially leading to internal service enumeration, cloud metadata exposure, or firewall bypass.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/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.
-
Identify if Fluid Topics is installedLook for Fluid Topics installation directories or check running services on the host. Common locations may include /opt/fluidtopics, /usr/local/fluidtopics, or check for the fluidtopics service/process.Affected if Fluid Topics software is present on the system
-
Determine the installed Fluid Topics versionCheck the version file or command output. Common methods include: looking for a VERSION file in the installation directory, running 'fluidtopics --version' if available, or checking the admin interface for version information.Affected if The installed version is lower than 4.3 (e.g., 4.2.x, 4.1.x, earlier versions)
-
Verify if user authentication is enabled and activeCheck the Fluid Topics authentication configuration files (such as security or authentication settings in the config directory). Determine if local authentication, LDAP, or other user management is configured and active.Affected if User authentication is configured and users can log in to the Fluid Topics platform
-
Identify if external HTTP request features are accessibleReview Fluid Topics configuration for features that allow users to specify URLs or make server-side HTTP requests. This may include data connectors, content sources, or custom feed configurations.Affected if Features allowing URL input or HTTP requests from the server are accessible to authenticated users
You are affected if Fluid Topics is installed with a version prior to 4.3 and authenticated users can access features that trigger server-side HTTP requests.
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 · scopedUpgrade Fluid Topics to version 4.3 or later. If immediate upgrading is not feasible, implement strict network segmentation and restrict server-side outgoing network connections to prevent abuse of this SSRF vector.
4.3 or later
- Upgrade Fluid Topics platform to version 4.3 or later to remediate the SSRF vulnerability
- Verify the upgrade in a test environment before deploying to production
- After upgrading, confirm that authenticated users can no longer force the server to make arbitrary requests to internal/external resources
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-2023-31456 — 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-2023-31456 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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