CVE-2023-20263
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 · uneditedA vulnerability in the web-based management interface of Cisco HyperFlex HX Data Platform could allow an unauthenticated, remote attacker to redirect a user to a malicious web page. This vulnerability is due to improper input validation of the parameters in an HTTP request. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow the attacker to redirect a user to a malicious website.
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 an Open Redirect (CWE-601) vulnerability in Cisco HyperFlex HX Data Platform's web-based management interface. The vulnerability stems from improper input validation of URL parameters in HTTP requests, allowing an unauthenticated attacker to craft malicious links that redirect users to arbitrary websites. Successful exploitation requires social engineering to trick users into clicking crafted links.
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= 5.0= 5.5CVSS 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 HyperFlex HX Data Platform versionAccess the cluster's management interface or run 'show version' via SSH to the HX cluster controller. Alternatively, check the installed packages via the HX Connect UI or API endpoint.Affected if The installed version is exactly 5.0 or exactly 5.5
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Confirm web-based management interface is enabledCheck if the web UI is accessible by navigating to the HyperFlex management URL (typically on port 443). Verify the service is running via 'show running-config' or by querying the management service status.Affected if The web-based management interface is exposed and accessible
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Review HTTP access logs for redirect patternsExamine web server access logs (usually in /var/log/ or via the management UI) for incoming requests containing 'redirect=', 'url=', or 'next=' parameters with external domains. Search for patterns like 'http://' or 'https://' in query strings.Affected if Logs show unauthenticated requests with suspicious URL redirection parameters pointing to external domains
A defender is affected if they are running Cisco HyperFlex HX Data Platform version 5.0 or 5.5 with the web management interface exposed, and external URL redirection parameters appear in their access logs.
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 dataApply Cisco's official patch for CVE-2023-20263 when available. As an interim control, implement URL allowlisting or disable open redirects in the web interface, and educate users about the risks of clicking untrusted links.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-20263 — 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-2023-20263 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
- No spam, self-promotion, credentials, or personal data