CVE intelligence and bounded remediation

CVE-2019-18265 — Digitalalertsystems Dasdec Ii Firmware security vulnerability

Medium CVSS 5.4

Digital Alert Systems’ DASDEC software prior to version 4.1 contains a cross-site scripting (XSS) vulnerability that allows remote attackers to inject arbitrary web script or HTML via the SSH username, username field of the login page, or via the HTTP host header. The injected content is stored in logs and rendered when viewed in the web application.

Severity
Medium
CVSS
5.4 (3.1)
Published
2022-11-30
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-79

Affected products

  • digitalalertsystems / dasdec_ii_firmware
  • digitalalertsystems / one-net_se_firmware
  • digitalalertsystems / dasdec_i_firmware
  • digitalalertsystems / one-net_firmware
  • digitalalertsystems / dasdec_iii_firmware

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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