CVE intelligence and bounded remediation

CVE-2018-12241 — The Symantec Security Analytics (SA) 7.x prior to 7.3.4 Web UI is susceptible to a reflected cross-site scripting (XSS) vulnerability

Medium CVSS 6.1

The Symantec Security Analytics (SA) 7.x prior to 7.3.4 Web UI is susceptible to a reflected cross-site scripting (XSS) vulnerability. A remote attacker with knowledge of the SA web UI hostname or IP address can craft a malicious URL for the SA web UI and target SA web UI users with phishing attacks or other social engineering techniques. A successful attack allows injecting malicious JavaScript code into the SA web UI client application.

Severity
Medium
CVSS
6.1 (3.0)
Published
2018-11-27
CISA KEV
Not currently listed
Ecosystem
javascript/npm
Weaknesses
CWE-79

Affected products

  • symantec / security_analytics

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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