CVE-2026-71237: Miantang IoT-PHP

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Miantang/IoT-PHP's index.php implements a POST /userlogin route that reads the password directly from ['pwd'] with no sanitization and concatenates it into a raw SQL string: mysql_query("select * from userlists where username='' and password='' limit 1"). An unauthenticated attacker can submit a payload such as pwd=' OR '1'='1 to bypass authentication and, via UNION-based injection, extract arbitrary data from the database.

Affected products

• Miantang IoT-PHP: version 0 only

Published 2026-08-05. Last modified 2026-08-26.