TI-2026-05908 CVE-2026-6743 · GHSA-3m63-v2w7-cxcrWebSystems WebTOTUM Calendar cross site scriptingPriority MEDIUM 56A vulnerability has been found in WebSystems WebTOTUM 2026.CVSS 4.0MEDIUM 5.1· Network · Low privileges · User interaction · EPSS 0.00195 · Published 2026-04-21 · No fix listed CWE-79