VULNERABILITY INTELLIGENCE

CVE-2025-61987

CVSS score6.9 MEDIUM

EPSS probability0.15%

CISA KEVNot currently listed

Published2025-12-12

Last modified2026-10-07

Description

GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior to ver5.3.3, and GroupSession ZION prior to ver5.3.2. do not validate origins in WebSockets. If a user accesses a crafted page, Chat information sent to the user may be exposed.