Advisories

Heym before 0.0.53 Authentication Bypass via Telegram Webhook

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severity
high
date
Affecting
  • heym >= 0, < 0.0.53

CWE
  • CWE-287 Improper Authentication
CVSS
8.3
CVSS V3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
Credit
okcomputerfan, mbakgun
Description
Heym before 0.0.53 fails to verify the X-Telegram-Bot-Api-Secret-Token header on Telegram webhook endpoints when credential_id is absent or secret_token is empty. Remote unauthenticated attackers can post forged Telegram updates to trigger workflows with the owner's configured credentials and execute actions on attacker-supplied input.

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