xianyu-auto-reply-fix through 2.0.7 Unauthenticated Message Sending via /send-message
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fix or patch referenced
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The xianyu-auto-reply-fix software, an automatic reply tool for the Xianyu marketplace, is affected by this flaw. An unauthenticated attacker could use publicly known default API credentials to send messages through other users' seller accounts, impersonating merchants and sending arbitrary messages to buyers.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original 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.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- GuDong2003 xianyu-auto-reply-fix
through 2.0.7