NukeViet CMS <= 4.5.08 contains a Stored Cross-Site Scripting (XSS) vulnerability caused by insufficient server-side input sanitization in the Request class. The application relies primarily on client-side filtering to sanitize HTML tags and attributes in user-submitted content, which can be bypassed by intercepting and modifying HTTP requests directly (e.g., using Burp Suite).
This affects any module or functionality that accepts user HTML input through the Request class. An attacker can inject malicious payloads such as <iframe srcdoc="<img src=1 onerror=alert(document.cookie)>"></iframe>, which are stored server-side and executed in the browser of any user who views the content.
Who is impacted:
Potential impact includes:
This vulnerability has been fixed in NukeViet 4.5.08. Users should upgrade to version >= 4.5.08.
<iframe>, srcdoc, event handlers such as onerror, onload).HttpOnly flag to mitigate cookie theft via XSS.{
"cwe_ids": [
"CWE-79"
],
"github_reviewed": true,
"github_reviewed_at": "2026-05-15T16:45:03Z",
"nvd_published_at": "2026-05-22T22:16:56Z",
"severity": "HIGH"
}