299Ko - Unauthenticated Reflected XSS in Public Contact Form
CVSS score
6.1
EPSS probability
%0.3
Risk score
0.0
Published
2 mo ago
Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.
Impact on My Inventory
Only the personal products you have added to your account are assessed; an organisation's inventory does not appear here.
Checking session…
Vulnerability description
CVE AI research
DayBreach AI Explanation
Verified against sourcesSources read
2
Source agreement
Tam uyum
Evidence confidence
%63
Short explanation
299Ko's public contact form suffers from unauthenticated reflected XSS due to lack of input sanitization. An attacker can inject malicious scripts via form submission, enabling session token theft. CVSS score is 6.1 (Medium). Patch status is UNKNOWN. No fixed version is available in public records.
This vulnerability allows session token theft without authentication, posing a direct threat to user sessions, especially for targeted administrators. It is exploitable by unauthenticated attackers with minimal effort.
What should be done?
- Apply vendor patch or update to fix input sanitization in ContactController.php and Template.php
Chain of evidence and sources
299Ko'nun public contact formu, ContactController.php dosyasında kullanıcı girdilerini temizlemeden işler ve bu nedenle, istismar edilebilir bir XSS istismarı ile kullanıcıya yansıtan bir saldırı yapılabilir.
Bir saldırıcının bir kullanıcıyı formu otomatik olarak doldurmasıyla teşvik ederek, bir kullanıcıya yansıtılan XSS ile oturum belirteci çalınabilir, bu da özellikle hedeflenmiş yönetici kullanıcılarına etki eder.
Bu ele geçirme, CVSS 3.1 puanı 6.1 (Orta ciddiyet) ve son değerlendirme sonucunda yama yapılmadığı için bilinir.
Show the technical text from the sources
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.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE: CWE-79
Explanation produced with the local qwen3:4b-instruct model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-71249 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | 299ko | 299Ko | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 6.1 | CVSS V3_1 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | CVE CNA |
| 6.1 | CVSS V31 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.
Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-71249 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-71249 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Get this vulnerability through the API
Affected products, version ranges, exploitation status and patch information in a single request, with a free key.
curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-71249"