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Advisories

xianyu-auto-reply-fix through 2.0.7 Unauthenticated Message Sending via /send-message

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Severity
medium
Date
Affecting

  • xianyu-auto-reply-fix <= 2.0.7

CWE
  • CWE-1188 Initialization of a Resource with an Insecure Default
CVSS
6.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
hieuPenguinnn
Description
xianyu-auto-reply-fix through 2.0.7 contains a missing authorization vulnerability in the POST /send-message endpoint that allows unauthenticated attackers to send messages from other users' accounts using publicly known default API secrets. Attackers can supply the hard-coded api_key and another user's cookie_id, plus chosen chat_id, to_user_id and message values, to send arbitrary Xianyu messages to buyers from that merchant account.

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