CVE intelligence and bounded remediation

CVE-2019-3490 — Microfocus Open Enterprise Server security vulnerability

Medium CVSS 6.1

A DOM based XSS vulnerability has been identified in the Netstorage component of Open Enterprise Server (OES) allowing a remote attacker to execute javascript in the victims browser by tricking the victim into clicking on a specially crafted link. This affects OES versions OES2015SP1, OES2018, and OES2018SP1. Older versions may be affected but were not tested as they are out of support.

Severity
Medium
CVSS
6.1 (3.0)
Published
2019-05-02
CISA KEV
Not currently listed
Ecosystem
javascript/npm
Weaknesses
CWE-79

Affected products

  • microfocus / open_enterprise_server / 2015.1
  • microfocus / open_enterprise_server / 2018.0
  • microfocus / open_enterprise_server / 2018.1

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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