CVE-2019-9538
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 · unedited: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the LDAP cbURL parameter of Telos Automated Message Handling System allows a remote attacker to inject arbitrary script into an AMHS session. This issue affects: Telos Automated Message Handling System versions prior to 4.1.5.5.
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 stored Cross-site Scripting (XSS) vulnerability in the Telos Automated Message Handling System (AMHS). The LDAP cbURL parameter does not properly sanitize user-supplied input before reflecting it back in the web page, allowing an attacker to inject arbitrary JavaScript that executes in the context of other users' sessions.
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< 4.1.5.5CVSS 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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Confirm Telos AMHS installationCheck if Telos Automated Message Handling System is installed on the host by looking for AMHS-related services, processes, or installation directories.Affected if Telos AMHS is not installed on the system.
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Identify installed versionLocate and read the Telos AMHS version information from the application or its configuration files, then compare it against the affected range of versions before 4.1.5.5.Affected if The installed version is earlier than 4.1.5.5.
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Verify LDAP module is enabledCheck whether the LDAP functionality is configured and active in Telos AMHS, as the vulnerability exists in the LDAP cbURL parameter.Affected if LDAP integration is enabled and configured in Telos AMHS.
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Confirm web interface exposureDetermine if the Telos AMHS web interface is accessible to users, since the XSS payload is reflected in web pages served to users.Affected if The web interface is accessible and serves pages that reflect the LDAP cbURL parameter back to users.
A user is affected if Telos AMHS version is earlier than 4.1.5.5, the LDAP module is enabled, and the web interface is accessible to users who could trigger the stored XSS.
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 data4.1.5.5
Upgrade to Telos AMHS version 4.1.5.5 or later. Until upgrade is possible, implement input validation and output encoding on the cbURL parameter to prevent script injection.
- Consultation2.0 h
- Implementation4.0 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-2019-9538 — 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-2019-9538 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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- Version or environment caveats, and links to real fixes
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