CVE intelligence and bounded remediation

CVE-2025-1271 — Reflected Cross-Site Scripting (XSS) in Anapi Group's h6web

Medium CVSS 6.1

Reflected Cross-Site Scripting (XSS) in Anapi Group's h6web. This security flaw could allow an attacker to inject malicious JavaScript code into a URL. When a user accesses that URL, the injected code is executed in their browser, which can result in the theft of sensitive information, identity theft or the execution of unauthorised actions on behalf of the affected user.

Severity
Medium
CVSS
6.1 (3.1)
Published
2025-02-13
CISA KEV
Not currently listed
Ecosystem
javascript/npm
Weaknesses
CWE-79

Affected products

  • anapi / h6web

Matched remediation archetype

Cross-site scripting and unsafe browser output

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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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