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EUVD-2026-278243

fkie_cve-2026-34375

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the YPTWallet Stripe payment confirmation page directly echoes the `$_REQUEST['plugin']` parameter into a JavaScript block without any encoding or sanitization. The `plugin` parameter is not included in any of the framework's input filter lists defined in `security.php`, so it passes through completely raw. An attacker can inject arbitrary JavaScript by crafting a malicious URL and sending it to a victim user. The same script block also outputs the current user's username and password hash via `User::getUserName()` and `User::getUserPass()`, meaning a successful XSS exploitation can immediately exfiltrate these credentials. Commit fa0bc102493a15d79fe03f86c07ab7ca1b5b63e2 fixes the issue.

GHSA-pm37-62g7-p768 — AVideo Vulnerable to Reflected XSS via Unsanitized plugin Parameter in YPTWallet Stripe Payment Page

Affected: Packagist: wwbn/avideo

## Summary

The YPTWallet Stripe payment confirmation page directly echoes the `$_REQUEST['plugin']` parameter into a JavaScript block without any encoding or sanitization. The `plugin` parameter is not included in any of the framework's input filter lists defined in `security.php`, so it passes through completely raw. An attacker can inject arbitrary JavaScript by crafting a malicious URL and sending it to a victim user.

The same script block also outputs the current user's username and password hash via `User::getUserName()` and `User::getUserPass()`, meaning a successful XSS exploitation can immediately exfiltrate these credentials.

## Details

The Stripe confirmation page renders the `plugin` parameter directly into a `<script>` block:

```php // plugin/YPTWallet/plugins/YPTWalletStripe/confirmButton.php:116 "plugin": "<?php echo @$_REQUEST['plugin']; ?>", ```

This appears inside a `$.ajax()` data object within a `<script>` tag. Because the value is injected into a JavaScript string context (not HTML), standard HTML entity encoding would not be sufficient even if it were applied. However, no encoding of any kind is performed.

The `plugin` parameter is not present in any of the sanitization or filtering arrays in `security.php`, so it arrives completely unmodified.

Immediately adjacent to the injection point, the script also exposes user credentials:

```php // plugin/YPTWallet/plugins/YPTWalletStripe/confirmButton.php:117-118 "user": "<?php echo User::getUserName()…