CVE-2026-90502: Stilleshan Serverstatus

Low severity, CVSS 3.5. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability was detected in stilleshan ServerStatus 1.0/2.0. Impacted is an unknown function of the file server/src/main.cpp of the component Stats Generation. Performing a manipulation of the argument custom results in cross site scripting. It is possible to initiate the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Stilleshan Serverstatus: version 1.0 only; version 2.0 only

Published 2026-09-13. Last modified 2026-09-14.