The wp_http_validate_url function in wp-includes/http.php in WordPress before 4.4.2 allows remote attackers to conduct server-side request forgery (SSRF) attacks via a zero value in the first octet of an IPv4 address in the u parameter to wp-admin/press-this.php.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Wordpress | Wordpress | 4.4.1 (including) | 4.4.1 (including) |
| Wordpress | Ubuntu | artful | * |
| Wordpress | Ubuntu | precise | * |
| Wordpress | Ubuntu | trusty | * |
| Wordpress | Ubuntu | upstream | * |
| Wordpress | Ubuntu | wily | * |
| Wordpress | Ubuntu | yakkety | * |
| Wordpress | Ubuntu | zesty | * |