Vulnerability · Published Sep 9, 2026 · Assigned by mitre
CVE-2026-71809
High 8.1
In plain English
A high-severity security flaw in the affected software. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.6%top 51.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Authentication Bypass via Hardcoded Master Verification Code vulnerability in Siam Ordering (siam-server) 1.0.0 allows remote unauthenticated attackers to log in as any user, merchant, or administrator.
Affected products (as reported)
Weakness: CWE-259 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H