CVE-2026-71249EPSS p15.3%
CVE-2026-71249CVE-2026-71249
Description
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.
Scoring
| CVSS | 6.1 () |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| EPSS | 0.25% probability of exploitation · percentile 15.3% · 2026-10-06T12:00:23Z |
| Last modified | 2026-08-26 |