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EUVD-2026-319053

2026-10-09T10:58:31.237903+00:00

EUVD-2026-319053

fkie_cve-2026-43879

2026-10-09T10:58:31.237954+00:00

WWBN AVideo is an open source video platform. In versions up to and including 29.0, an authenticated user can configure their own donation-notification webhook URL to point at internal/loopback/metadata hosts (e.g. http://127.0.0.1:8080/..., http://169.254.169.254/latest/..., RFC1918 addresses). When any other user (including a second account owned by the same attacker) donates even a trivial amount via plugin/CustomizeUser/donate.json.php, the AVideo server issues a curl POST to the attacker-supplied URL, resulting in a blind SSRF. The handler uses only isValidURL() (which is a format check) and does not call the codebase's own isSSRFSafeURL() helper. Additionally, CURLOPT_FOLLOWLOCATION is enabled with no per-hop revalidation, so even if the stored URL were validated, an HTTP 307 from an attacker-controlled host could redirect the POST to internal targets. Commit aaacd48f29f1ff71d1eb5fc81d37605f593cefa9 contains an updated fix.

GHSA-wp38-whx3-xffh — AVideo has Blind SSRF in YPTWallet Donation Webhook via Missing isSSRFSafeURL() Check and CURLOPT_FOLLOWLOCATION Redire…

2026-10-09T10:58:31.237993+00:00

Affected: Packagist: wwbn/avideo

## Summary

An authenticated user can configure their own donation-notification webhook URL to point at internal/loopback/metadata hosts (e.g. `http://127.0.0.1:8080/...`, `http://169.254.169.254/latest/...`, RFC1918 addresses). When any other user (including a second account owned by the same attacker) donates even a trivial amount via `plugin/CustomizeUser/donate.json.php`, the AVideo server issues a `curl` POST to the attacker-supplied URL, resulting in a blind SSRF. The handler uses only `isValidURL()` (which is a format check) and does not call the codebase's own `isSSRFSafeURL()` helper. Additionally, `CURLOPT_FOLLOWLOCATION` is enabled with no per-hop revalidation, so even if the stored URL were validated, an HTTP 307 from an attacker-controlled host could redirect the POST to internal targets.

## Details

### Sink: unvalidated curl POST in afterDonation

`plugin/YPTWallet/YPTWallet.php:1043-1099`

```php public function afterDonation($from_users_id, $how_much, $videos_id, $users_id, $extraParameters) { ... $donation_notification_url = self::getDonationNotificationURL($users_id); ... if (!empty($donation_notification_url) && isValidURL($donation_notification_url)) { ... $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $donation_notification_url); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, $postData); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch,…