CVE intelligence and bounded remediation

CVE-2019-14228 — Angry-Frog Xavier security vulnerability

Medium CVSS 6.1

Xavier PHP Management Panel 3.0 is vulnerable to Reflected POST-based XSS via the username parameter when registering a new user at admin/includes/adminprocess.php. If there is an error when registering the user, the unsanitized username will reflect via the error page. Due to the lack of CSRF protection on the admin/includes/adminprocess.php endpoint, an attacker is able to chain the XSS with CSRF in order to cause remote exploitation.

Severity
Medium
CVSS
6.1 (3.0)
Published
2019-07-26
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-79, CWE-352

Affected products

  • angry-frog / xavier / 3.0

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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