{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-61987","assignerOrgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","state":"PUBLISHED","assignerShortName":"jpcert","dateReserved":"2025-11-27T05:42:08.569Z","datePublished":"2025-12-12T05:02:22.443Z","dateUpdated":"2025-12-12T20:22:14.823Z"},"containers":{"cna":{"affected":[{"vendor":"Japan Total System Co.,Ltd.","product":"GroupSession Free edition","versions":[{"version":"prior to ver5.3.0","status":"affected"}]},{"vendor":"Japan Total System Co.,Ltd.","product":"GroupSession byCloud","versions":[{"version":"prior to ver5.3.3","status":"affected"}]},{"vendor":"Japan Total System Co.,Ltd.","product":"GroupSession ZION","versions":[{"version":"prior to ver5.3.2","status":"affected"}]}],"descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"description":"Missing origin validation in WebSockets","lang":"en-US","cweId":"CWE-1385","type":"CWE"}]}],"references":[{"url":"https://groupsession.jp/info/info-news/security20251208"},{"url":"https://jvn.jp/en/jp/JVN19940619/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV3_0":{"version":"3.0","baseSeverity":"MEDIUM","baseScore":5.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"}},{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV4_0":{"version":"4.0","baseSeverity":"MEDIUM","baseScore":6.9,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}}],"providerMetadata":{"orgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","shortName":"jpcert","dateUpdated":"2025-12-12T05:02:22.443Z"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-12-12T20:22:00.604879Z","id":"CVE-2025-61987","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-12-12T20:22:14.823Z"}}]}}