CVE-2026-71249 — 299Ko - Unauthenticated Reflected XSS in Public Contact Form
299Ko's public contact form (plugin/contact/controllers/ContactController.php, home) sets raw POST field values (name, firstname, email, message) into the page template with no …
Published: 2026-08-05 · CVSS: 6.1 · CVSS 3.1
299Ko's public contact form (plugin/contact/controllers/ContactController.php, home) sets raw POST field values (name, firstname, email, message) into the page template with no sanitization. The template engine's variable output function (common/Template.php, _show_var) echoes values with no htmlspecialchars call, and the sink template (contact.tpl) outputs these values unescaped into an HTML attribute and a textarea.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7