Security readout for executives and security teams
Plain-English summary
CVE-2018-7834 is a cross-site scripting issue in all versions of Schneider Electric ConneXium Gateway TSXETG100. An attacker could send a crafted URL to a user; if opened, script runs in that user’s browser context for the device interface.
Executive priority
Treat this as a targeted operational technology management-interface risk. It is not confirmed exploited, but affected products include all TSXETG100 versions, so asset discovery and vendor-guided remediation should be scheduled promptly.
Technical view
The CVE describes CWE-79 XSS affecting ConneXium Gateway TSXETG100, all versions. The attack vector is a specially crafted URL with embedded script executed in the context of the user who opens it. The bundle provides no CVSS score, patch details, or confirmed exploitation.
Likely exposure
Exposure is likely limited to organizations operating TSXETG100 gateways, especially where device management interfaces are reachable by administrators through browsers or exposed beyond trusted management networks.
Exploitation context
The provided sources do not indicate active exploitation, and the CVE is not listed as KEV. Exploitation appears to require user interaction: a targeted user must open a crafted URL.
Researcher notes
Evidence is sparse: the CVE record identifies CWE-79, affected product scope, and the crafted-URL execution behavior, but gives no CVSS vector or patch text in the supplied bundle. Avoid asserting firmware fixes without consulting Schneider’s advisory.
Mitigation direction
- Review Schneider advisory SEVD-2019-134-07 for official remediation guidance.
- Inventory ConneXium Gateway TSXETG100 devices and identify all management access paths.
- Restrict management interfaces to trusted networks or VPN access where feasible.
- Prioritize systems exposed to untrusted users or remote administration workflows.
Validation and detection
- Confirm whether any deployed asset is a ConneXium Gateway TSXETG100.
- Check if management interfaces are reachable from user workstations or untrusted networks.
- Review logs or proxy telemetry for suspicious TSXETG100 management URLs.
- Verify remediation status against Schneider Electric’s advisory before closure.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2018-7834 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.schneider-electric.com/en/download/document/SEVD-2019-134-07/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.