CVE-2023-39600
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 · uneditedIceWarp 11.4.6.0 was discovered to contain a cross-site scripting (XSS) vulnerability via the color parameter.
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 confidenceA reflected cross-site scripting (XSS) vulnerability exists in IceWarp email server version 11.4.6.0. The vulnerability is present in the 'color' parameter of the web interface, allowing an attacker to inject malicious JavaScript code that executes in the context of a user's browser session.
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= 11.4.6.0CVSS 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
- 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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Confirm IceWarp installation and versionLocate the IceWarp installation directory or check system services for the installed IceWarp email server version. On Windows, check the registry or the installation folder. On Linux, check /opt/icewarp or use rpm/dpkg queries.Affected if The installed version is exactly 11.4.6.0
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Verify web interface accessibilityDetermine if the IceWarp web client is accessible by accessing the web interface URL (typically port 80/443 or the configured web server port). Check if the /webmail or /icewarp endpoints respond.Affected if The IceWarp web interface is exposed and reachable over the network
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Identify color parameter endpointLocate the web interface component that accepts the 'color' parameter. This is typically part of the web client theming or color customization feature in the IceWarp web interface.Affected if The color parameter is accepted by the web interface without proper sanitization
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Test for XSS in color parameterUsing a browser or HTTP tool, submit a crafted request to the web interface with a malicious payload in the color parameter (for example: color=javascript:alert(1)) and observe if the payload is reflected back unescaped in the response.Affected if The malicious payload is reflected back in the HTML response without encoding, allowing script execution
You are affected if IceWarp version 11.4.6.0 is installed and the web interface is accessible with the color parameter reflecting user input without sanitization.
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 input validation and output encoding for the color parameter. Sanitize any user-supplied input before reflecting it back in HTML/JavaScript contexts.
- Consultation3.0 h
- Implementation2.0 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-2023-39600 — 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-2023-39600 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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