Bot for Telegram on WooCommerce <= 1.3.0 - Unauthenticated Authentication Bypass to Account Takeover via Fake Telegram Webhook + Brute-Forced Login Token

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-109516
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-29 04:18:22 UTC
Updated2026-10-29 04:18:22 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-287 | CWE-287 CWE-287 Improper Authentication

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Guruteam Bot For Telegram On WooCommerce affected 1.3.0 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/B... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/B... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/B... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/1f6b73e0-c154-4bc4-90bc-09290... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/B... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/B... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/bot-for-telegram-on-woocommerce/tags/1.3.0/includes/B... [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: agr0chal (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-10-28T14:44:39.000ZDisclosed

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