NukeViet: Pre-authentication SSRF via X-Forwarded-Host
## Summary
An unauthenticated attacker can coerce the server into issuing HTTP requests to an attacker-chosen host by spoofing the `X Forwarded-Host` (and `X-Forwarded-Proto`) request headers. The forwarded host is used, without validation, to build the URL that `server_info_update()` fetches with cURL, resulting in a Server-Side Request Forgery (SSRF) that requires no authentication.
## Affected component
- File: `includes/ini.php` — function `server_info_update()` (cURL sink)
- File: `vendor/vinades/nukeviet/Core/Server.php` — `standardizeHost()` and the forwarded-header handling in the constructor (source of the tainted host)
- Trigger:
NukeViet: Path Traversal to Arbitrary File Deletion in Edit Comment Function
## Summary
Path Traversal to Arbitrary File Deletion in the Edit Comment admin function. An authenticated administrator can delete arbitrary files within the application root (e.g., `config.php`) by injecting a crafted `attach` parameter, rendering the application inoperable.
## Affected Component
`modules/comment/admin/edit.php`
## Root Cause
In the vulnerable version, the `attach` parameter received via HTTP POST was not validated before being processed:
```php
// Vulnerable code (before fix)
$attach = $nv_Request->get_string('attach', 'post', '', true);
if (!empty($attach)) {
$attach = substr($attach, strlen(NV_BASE_SITEURL . NV_
NukeViet: Multiple Anti-XSS Filter Bypasses Leading to Stored XSS in News Module
## Summary
Two filter-bypass techniques in `NukeViet\Core\Request::filterAttr()` and `NukeViet\Core\Request::unhtmlentities()` allow a low-privileged user (any account with news post permission) to store and serve arbitrary JavaScript to any visitor of the affected page.
## Affected Component
`vendor/vinades/nukeviet/Core/Request.php` — class `NukeViet\Core\Request`
## Vulnerability Details
### Bypass 1 — Form Feed character prefix (`\x0C`) before event handler name
The `filterAttr()` method blocks event-handler attributes using:
```php
preg_match('/^on/i', $attrSubSet[0])
```
PHP's `trim()` does **not** strip the ASCII Form Feed charac
NukeViet: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
## Summary
A stored cross-site scripting (XSS) vulnerability exists in NukeViet CMS versions 4.x through 4.5.08. A low-privileged authenticated user can store a JavaScript payload in their profile's display name fields. The payload executes in the browser of any visitor — including administrators — who clicks the **Reply** ("Answer") link on a comment posted by that user.
## Affected Component
The `{COMMENT.post_name}` template variable is interpolated without JavaScript-context escaping into an inline `onclick` handler in both comment block positions:
- `themes/default/modules/comment/comment.tpl` line 27 (top-level comments)
- `themes/d
NukeViet: Unauthenticated Reflected XSS in Comment Module
## Summary
Reflected XSS in the Comment module via the `status_comment` URL parameter. The parameter accepts attacker-controlled base64-encoded HTML/JavaScript that is decoded server-side and rendered unescaped into the page. Compounded by a second flaw: the `checkss` anti-forgery token was derived from a site-wide static value (`NV_CACHE_PREFIX`) instead of a per-session value, making the token reusable across all users and allowing the attack to be delivered via a simple crafted URL.
## Details
### Vulnerability 1 — Reflected XSS via `status_comment`
**Affected components:**
- `modules/comment/funcs/main.php` — parameter ingestion
- `mo
NukeViet CMS: Stored Cross-Site Scripting (XSS) via insufficient server-side input sanitization in Request class
NukeViet CMS is a multi Content Management System. Versions 4.5.07 and prior contain 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). An attacker can inject malicious payloads which are stored server-side and executed in the browser of any user who views the content. Anyone viewing user-submitted content (such as administrators and moderators revie
nukeviet v.4.5 and before and nukeviet-egov v.1.2.02 and before have a Deserialization vulnerability which results in code execution via /admin/extensions/download.php and /admin/extensions/upload.php.
NukeViet CMS Data URL Request.php filterAttr cross site scripting
A vulnerability, which was classified as problematic, has been found in NukeViet CMS. Affected by this issue is the function filterAttr of the file vendor/vinades/nukeviet/Core/Request.php of the component Data URL Handler. The manipulation of the argument attrSubSet leads to cross site scripting. The attack may be launched remotely. Upgrading to version 4.5 is able to address this issue. The name of the patch is 0b3197fad950bb3383e83039a8ee4c9509b3ce02. It is recommended to upgrade the affected component. VDB-213554 is the identifier assigned to this vulnerability.
SQL Injection vulnerability in NukeViet CMS module Shops 4.0.29 and 4.3 via the (1) listid parameter in detail.php and the (2) group_price or groupid parameters in search_result.php.
modules/banners/funcs/click.php in NukeViet before 4.3.04 has a SQL INSERT statement with raw header data from an HTTP request (e.g., Referer and User-Agent).
includes/core/is_user.php in NukeViet before 4.3.04 deserializes the untrusted nvloginhash cookie (i.e., the code relies on PHP's serialization format when JSON can be used to eliminate the risk).
clearsystem.php in NukeViet 4.4 allows CSRF with resultant HTML injection via the deltype parameter to the admin/index.php?nv=webtools&op=clearsystem URI.
modules\users\admin\edit.php in NukeViet 4.4 allows CSRF to change a user's password via an admin/index.php?nv=users&op=edit&userid= URI. The old password is not needed.