CVE-2020-21726: Opensns

Critical severity, CVSS 9.8. EPSS: 1.3% chance of exploitation in the next 30 days.

OpenSNS v6.1.0 contains a blind SQL injection vulnerability in /Controller/ChinaCityController.class.php via the cid parameter.

Affected products

• Opensns Opensns: version 6.1.0 only

Published 2021-10-07. Last modified 2026-06-17.