CVE-2026-71249 (GCVE-0-2026-71249)
Vulnerability from cvelistv5 – Published: 2026-08-05 10:57 – Updated: 2026-08-10 11:46
VLAI
EPSS
VEX
Title
299Ko - Unauthenticated Reflected XSS in Public Contact Form
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 13:37 UTC
CWE
- CWE-79 - Cross-site Scripting
Assigner
TuranSec
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/search?q=299ko&type=repositories | third-party-advisory |
Date Public
2026-08-05 10:57
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Nomenclature
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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