{"cve":"CVE-2026-109516","nvd":{"published":"2026-10-29T04:18:22.763","modified":"2026-10-29T04:18:22.763","status":"Received","description":"The Bot for Telegram on WooCommerce plugin for WordPress is vulnerable to Authentication Bypass leading to Account Takeover in all versions up to, and including, 1.3.0. The `/wp-json/woo-telegram/v1/main/` REST endpoint is registered with `permission_callback => '__return_true'` and performs no Telegram webhook signature verification, allowing an unauthenticated attacker to POST a forged bot update with a `message.chat.id` set to any WordPress login name; `bftow_get_user_system_id()` resolves this attacker-supplied value to the targeted account via `get_user_by('login', $tgId)` with no ownership proof, and writes a login token computed as `md5($_SERVER['HTTP_USER_AGENT'] . time())` — both inputs are fully attacker-controlled or bounded within seconds using the response's own `Date` header. The resulting token is redeemable at the unauthenticated, capability-check-free, and nonce-less `?action=bftow_create_order&bftow_token=` endpoint, which calls `wp_set_auth_cookie()` unconditionally via `login_user_by_id`, issuing a persistent authenticated session cookie for the targeted account to the attacker. This makes it possible for unauthenticated attackers to log in as any WordPress user, including administrators, given only that user's username.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-287"],"references":["https://plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/BFTOW_Telegram.php#L91","https://plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/BFTOW_Telegram.php#L98","https://plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/BFTOW_User.php#L149","https://plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/BFTOW_User.php#L44","https://plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/BFTOW_User.php#L62"],"products":[],"source":"nvd","synced_at":"2026-10-29T04:36:34.042597125+00:00"},"epss":null,"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}