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CVE-2026-109516

CRITICAL 9.8 CVSS 3.1
Published
October 29, 2026
Last modified
October 29, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-287
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Affected WordPress components

  • Bot for Telegram on WooCommerce Plugin · bot-for-telegram-on-woocommerce
    Confirmed match Active
    Up to and including 1.3.0
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • guruteam Bot for Telegram on WooCommerce — Up to and including 1.3.0

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/BFTOW_Telegram.php#L91
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/BFTOW_Telegram.php#L98
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/BFTOW_User.php#L149
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/BFTOW_User.php#L44
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/BFTOW_User.php#L62
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/BFTOW_WooCommerce.php#L42
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/1f6b73e0-c154-4bc4-90bc-0929053b77b0?source=cve
  • nvd.nist.gov Official NVD record