A vulnerability, which was classified as critical, was found in Yonyou KSOA 9.0. Affected is an unknown function of the file /worksheet/work_mod.jsp of the component HTTP GET Parameter Handler. Such manipulation of the argument ID leads to sql injection.

This vulnerability is traded as CVE-2026-1123. The attack may be launched remotely. Furthermore, there is an exploit available.

The vendor was contacted early about this disclosure but did not respond in any way.