Welcart e-Commerce < 2.11.34 - Author+ Stored XSS via Product Name
CVSS score
5.4
EPSS probability
%0.2
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
%58
Short explanation
The Welcart e-Commerce plugin before 2.11.34 suffers from a stored XSS vulnerability in product name fields, allowing Author+ users to inject and execute scripts in visitor browsers. No public exploit or active exploitation is confirmed. Patch status is UNKNOWN due to lack of vendor advisories. Remediation requires upgrading to version 2.11.34 or later.
This vulnerability enables script injection on public-facing product pages, posing a direct threat to user data and site integrity. No active exploitation is confirmed, but the risk remains for unpatched installations. Patch status is UNKNOWN; remediation requires version upgrade.
What should be done?
- Upgrade to version 2.11.34 or later
- Apply vendor patch if available via official advisory
- Do not use versions prior to 2.11.34
The sources give limited detail on some technical conditions. Review the chain of evidence below before deciding how to act.
Chain of evidence and sources
Welcart e-Commerce WordPress plugin 2.11.34'inden önceki sürümlerde ürün adı alanlarının temizlenmesi yapılmamıştır. Bu durum, Author+ rolüne sahip kullanıcıların ürün sayfalarında görüntülenen ziyaretçilerin tarayıcılarında istismar edilebilir web betiklerini yerleştirip çalıştırmasını sağlar.
İstismar veya aktif istismar için herhangi bir kanıt yoktur. Bu açıklık, bir açıklık veri tabanında yer almakla birlikte, gerçek dünya istismarının kanıtlanmadığı belirtilmektedir.
Yama değerlendirmesi, resmi tavsiyelerin veya kamu kaynaklarının eksikliği nedeniyle BİLİNMEYEN durumdadır. Belirtilen bilgilerde herhangi bir düzeltme sürümü bulunmamaktadır.
Show the technical text from the sources
The Welcart e-Commerce WordPress plugin before 2.11.34 does not sanitise or escape a product field before outputting it on the product pages, allowing users with the Author role and above to inject arbitrary web scripts that execute in the browser of any visitor viewing the product page.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/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-2026-16066 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | Unknown | Welcart e-Commerce | 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 |
|---|---|---|---|---|
| 5.4 | CVSS V3_1 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N | CVE ADP |
| 5.4 | CVSS V31 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/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-2026-16066 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-2026-16066 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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-2026-16066"