CVE-2018-7834
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 CWE-79 Cross-Site Scripting vulnerability exists in all versions of the TSXETG100 allowing an attacker to send a specially crafted URL with an embedded script to a user that would then be executed within the context of that 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 confidenceA CWE-79 Cross-Site Scripting (XSS) vulnerability in the TSXETG100 web interface allows attackers to embed malicious scripts in URLs. When a user clicks the crafted link, the script executes within their browser context, potentially stealing session cookies, performing actions as the user, or redirecting to malicious sites.
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 dataall versionsCVSS 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:3.0/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 TSXETG100 device on networkScan network for Schneider Electric TSXETG100 device by checking HTTP responses for the product banner or querying known IP addresses of these gatewaysAffected if Device is present on the network
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Confirm web interface is enabledAccess the device HTTP port (typically port 80/443) and verify the TSXETG100 web interface loads successfullyAffected if Web interface responds and is accessible
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Check network exposure of the web interfaceDetermine if the web interface is reachable from untrusted networks (internet-facing) or only from isolated management networks using firewall rules or network scansAffected if Web interface is accessible from untrusted networks or the internet
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Document firmware version for reportingAccess the device web interface admin page or use SNMP/serial console to retrieve the installed firmware version numberAffected if Any firmware version is found (all versions are affected)
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Identify vulnerable URL parametersReview the web application URLs for user-controllable parameters that might reflect input back into the page without proper encoding (common targets include query strings in navigation or search functions)Affected if URL parameters accept user input and reflect it in the response without encoding
A user is affected if they have a TSXETG100 device with the web interface enabled and network-accessible, since the XSS flaw exists in all firmware versions.
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 input validation and output encoding on all user-supplied parameters in the web interface; consider deploying a WAF rule to block XSS payloads as an interim measure until vendor firmware update is available.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-7834 — 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-2018-7834 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
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