CVE-2025-13556: Campcodes Online Polling System

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

A flaw has been found in Campcodes Online Polling System 1.0. Affected by this vulnerability is an unknown functionality of the file /admin/checklogin.php. Executing a manipulation of the argument myusername can lead to sql injection. The attack can be launched remotely. The exploit has been published and may be used.

Affected products

• Campcodes Online Polling System: version 1.0 only

Published 2025-11-23. Last modified 2026-06-17.