CVE intelligence and bounded remediation

CVE-2018-0679 — Cross-site scripting vulnerability in multiple FXC Inc

Medium CVSS 4.8

Cross-site scripting vulnerability in multiple FXC Inc. network devices (Managed Ethernet switch FXC5210/5218/5224 firmware prior to version Ver1.00.22, Managed Ethernet switch FXC5426F firmware prior to version Ver1.00.06, Managed Ethernet switch FXC5428 firmware prior to version Ver1.00.07, Power over Ethernet (PoE) switch FXC5210PE/5218PE/5224PE firmware prior to version Ver1.00.14, and Wireless LAN router AE1021/AE1021PE firmware all versions) allows attacker with administrator rights to inject arbitrary web script or HTML via the administrative page.

Severity
Medium
CVSS
4.8 (3.0)
Published
2018-11-15
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-79

Affected products

  • fxc / fxc5210_firmware
  • fxc / fxc5218_firmware
  • fxc / fxc5224_firmware
  • fxc / fxc5426f_firmware
  • fxc / fxc5428_firmware
  • fxc / fxc5210pe_firmware

Showing 6 representative product identities from 10 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Cross-site scripting and unsafe browser output

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Trace reflected, stored, and DOM-derived untrusted values into HTML, attributes, URLs, styles, scripts, and client-side template sinks.
  • Identify affected origins, authenticated user roles, sensitive browser capabilities, and where content is shared across tenants.
  • Review framework escaping, rich-text sanitization, legacy templates, and client-side rendering paths.

Remediate safely

  • Use context-aware framework output encoding and safe DOM APIs; keep untrusted data out of executable contexts.
  • Sanitize intentionally supported markup with a maintained allowlist policy and validate URLs and attributes separately.
  • Update affected rendering components and add tests for every output context using inert sentinel markup.

Authoritative sources

Complete CVE record and remediation plan

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