Low 6.3

xianyu-auto-reply-fix through 2.0.7 contains a missing authorization vulnerability in the POST ...

CVE-2026-118691 First seen on SecPulse 06:11

Affected packages

Ecosystem	Package	Affected	Fixed
GuDong2003	xianyu-auto-reply-fix	≤ 2.0.7	—

Original description The description as published by the source.

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.

Source: CVE.org (CVE Program・cvelistV5) NVD GitHub Advisory

References

Key facts

CVSS v3: Low 3.7; CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4: Medium 6.3; 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
Published: Oct 29, 2026
First seen on SecPulse: 06:11
GHSA: GHSA-8xg3-rxxw-rm99
CWE: CWE-1188

NVD GitHub Advisory

Tags(click for explanation)

CWE

CWE-1188

All

Gudong2003 Xianyu Auto Reply Fix

Detection sources

NIST National Vulnerability Database07:17
GitHub Security Advisories (Global)09:31
CVE.org (CVE Program・cvelistV5)06:11