CVE-2023-23128
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 · uneditedConnectwise Control 22.8.10013.8329 is vulnerable to Cross Origin Resource Sharing (CORS). The vendor's position is that two endpoints have Access-Control-Allow-Origin wildcarding to support product functionality, and that there is no risk from this behavior. The vulnerability report is thus not valid.
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 confidenceConnectwise Control version 22.8.10013.8329 contains a CORS misconfiguration where two endpoints expose the Access-Control-Allow-Origin header with a wildcard (*) value, allowing any origin to access these endpoints. This violates CORS security best practices by permitting cross-origin requests from untrusted domains.
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= 22.8.10013.8329CVSS 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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Check Connectwise Control versionLocate the installed Connectwise Control version by checking the application itself (typically found in About or Help menu), or query the server endpoint for version informationAffected if The installed version is exactly 22.8.10013.8329
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Identify the affected endpointsExamine HTTP responses from the Connectwise Control server endpoints (typically administrative or API-facing endpoints)Affected if Cannot determine specific endpoint names from provided CVE data - check all sensitive endpoints for CORS headers
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Inspect Access-Control-Allow-Origin headerSend an HTTP request to the Connectwise Control server with an Origin header set to an arbitrary domain (e.g., Origin: http://example.com), then inspect the response headers for Access-Control-Allow-OriginAffected if The response contains Access-Control-Allow-Origin: * (wildcard) allowing any origin
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Verify CORS misconfiguration scopeTest multiple different Origin values to confirm the wildcard behavior persists across requestsAffected if Any cross-origin request returns Access-Control-Allow-Origin: * regardless of the Origin value used
You are affected if your Connectwise Control is version 22.8.10013.8329 AND HTTP responses from the server include Access-Control-Allow-Origin header set to wildcard (*).
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 dataRestrict the Access-Control-Allow-Origin header to specific trusted origins rather than using the wildcard. Implement proper origin validation and consider additional CORS safeguards such as Access-Control-Allow-Credentials with strict origin controls.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-23128 — 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-2023-23128 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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