CVE-2026-71249
299Ko - Unauthenticated Reflected XSS in Public Contact Form
- State
- Published
- Severity
- 6.1 Medium
- Published
- Aug 5, 2026
- Updated
- Aug 10, 2026
- Reserved
- Aug 5, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.1 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | TuranSec |
Weaknesses
- CWE-79 Cross-site Scripting
Affected Products
| Product | Versions |
|---|---|
299Ko299ko |
|
References
- https://github.com/search?q=299ko&type=repositoriesthird-party-advisory
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