{"id":"CVE-2026-118691","aliases":[],"cve":{"records":[{"id":"CVE-2026-118691","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-28T17:31:29.498Z","published":"2026-10-28T21:11:18.629Z","modified":"2026-10-28T21:11:18.629Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-10-28T21:11:18.629Z"}],"references":[{"url":"https://github.com/GuDong2003/xianyu-auto-reply-fix/issues/116","tags":["issue-tracking"],"source":"VulnCheck"},{"url":"https://github.com/GuDong2003/xianyu-auto-reply-fix","tags":["product"],"source":"VulnCheck"},{"url":"https://github.com/GuDong2003/xianyu-auto-reply-fix/blob/v2.0.7/reply_server.py#L2347-L2475","tags":["technical-description"],"source":"VulnCheck"},{"url":"https://github.com/GuDong2003/xianyu-auto-reply-fix/blob/v2.0.7/db_manager.py#L1011","tags":["technical-description"],"source":"VulnCheck"},{"url":"https://github.com/GuDong2003/xianyu-auto-reply-fix/commit/999cfe61c401322d9893eb81ad1a76beabba6cfb","tags":["patch"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/xianyu-auto-reply-fix-through-2.0.7-unauthenticated-message-sending-via-send-message","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-1188","description":"Initialization of a Resource with an Insecure Default","source":"VulnCheck"}],"applicability":[],"prioritization":[]},"title":"xianyu-auto-reply-fix through 2.0.7 Unauthenticated Message Sending via /send-message","titleSource":"VulnCheck","descriptionSource":"VulnCheck","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account.","score":6.3,"severity":"medium","published":"2026-10-28T21:11:18.629Z","modified":"2026-10-28T21:11:18.629Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"GuDong2003","name":"xianyu-auto-reply-fix","platforms":[],"versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.0.7","versionType":"semver"}],"defaultStatus":"unaffected","cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-118691"}],"remediation":[],"references":["https://github.com/GuDong2003/xianyu-auto-reply-fix/issues/116","https://github.com/GuDong2003/xianyu-auto-reply-fix","https://github.com/GuDong2003/xianyu-auto-reply-fix/blob/v2.0.7/reply_server.py#L2347-L2475","https://github.com/GuDong2003/xianyu-auto-reply-fix/blob/v2.0.7/db_manager.py#L1011","https://github.com/GuDong2003/xianyu-auto-reply-fix/commit/999cfe61c401322d9893eb81ad1a76beabba6cfb","https://www.vulncheck.com/advisories/xianyu-auto-reply-fix-through-2.0.7-unauthenticated-message-sending-via-send-message"],"sources":[{"name":"CVE","id":"CVE-2026-118691","modified":"2026-10-28T21:11:18.629Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-118691"}],"assessments":[{"source":"VulnCheck","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","score":6.3},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","score":3.7}],"sourceAffected":[],"observedAt":"2026-10-29T14:37:41.847Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T03:10:30.875Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-28T23:55:34.926Z","attemptedAt":"2026-10-28T23:55:34.926Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-10-28T23:55:35.165Z","attemptedAt":"2026-10-28T23:55:35.165Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-28T23:55:35.556Z","attemptedAt":"2026-10-28T23:55:35.556Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-28T23:55:34.964Z","attemptedAt":"2026-10-28T23:55:34.964Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-118691","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118691","modified":"2026-10-28T22:17:13.217","score":6.3,"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","checkedAt":"2026-10-28T23:55:34.926Z"},{"source":"NVD","id":"CVE-2026-118691","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118691","modified":"2026-10-28T22:17:13.217","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","checkedAt":"2026-10-28T23:55:34.926Z"},{"source":"ENISA EUVD","id":"EUVD-2026-112492","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112492","modified":"Oct 28, 2026, 9:11:18 PM","score":6.3,"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","checkedAt":"2026-10-28T23:55:35.556Z"}],"aiSummary":{"text":"xianyu-auto-reply-fix through 2.0.7 has a missing authorization vulnerability, allowing unauthenticated attackers to send messages from other users' accounts. Attackers can use a publicly known default API secret and another user's cookie_id to send arbitrary messages. The weakness is due to initialization with an insecure default.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:02:03.626Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-118691"}]}}