{"id":"CVE-2025-64781","state":"PUBLISHED","title":"In GroupSession Free edition prior to ver5.7.1, GroupSession byCloud prior to ver5.7.1, and GroupSession ZION prior to ver5.7.1, \"External page display restriction\" is set to \"Do n","description":"In GroupSession Free edition prior to ver5.7.1, GroupSession byCloud prior to ver5.7.1, and GroupSession ZION prior to ver5.7.1, \"External page display restriction\" is set to \"Do not limit\" in the initial configuration. With this configuration, the user may be redirected to an arbitrary website when accessing a specially crafted URL.","publishedAt":"2025-12-12T05:02:58.824Z","updatedAt":"2025-12-12T20:26:03.855Z","severity":{"score":5.1,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","source":"jpcert"},"assigner":"jpcert","products":["Japan Total System Co.,Ltd. GroupSession Free edition","Japan Total System Co.,Ltd. GroupSession byCloud","Japan Total System Co.,Ltd. GroupSession ZION"],"affected":[{"vendor":"Japan Total System Co.,Ltd.","product":"GroupSession Free edition","versions":[{"version":"prior to ver5.7.1","status":"affected"}]},{"vendor":"Japan Total System Co.,Ltd.","product":"GroupSession byCloud","versions":[{"version":"prior to ver5.7.1","status":"affected"}]},{"vendor":"Japan Total System Co.,Ltd.","product":"GroupSession ZION","versions":[{"version":"prior to ver5.7.1","status":"affected"}]}],"references":["https://groupsession.jp/info/info-news/security20251208","https://jvn.jp/en/jp/JVN19940619/"],"weaknesses":["CWE-1188"],"ingestedAt":"2026-10-29T20:09:48.677Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/64xxx/CVE-2025-64781.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-64781","state":"PUBLISHED","datePublished":"2025-12-12T05:02:58.824Z","dateUpdated":"2025-12-12T20:26:03.855Z","assignerShortName":"jpcert","assignerOrgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","dateReserved":"2025-11-27T05:42:04.952Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"In GroupSession Free edition prior to ver5.7.1, GroupSession byCloud prior to ver5.7.1, and GroupSession ZION prior to ver5.7.1, \"External page display restriction\" is set to \"Do not limit\" in the initial configuration. With this configuration, the user may be redirected to an arbitrary website when accessing a specially crafted URL."}],"affected":[{"vendor":"Japan Total System Co.,Ltd.","product":"GroupSession Free edition","versions":[{"version":"prior to ver5.7.1","status":"affected"}]},{"vendor":"Japan Total System Co.,Ltd.","product":"GroupSession byCloud","versions":[{"version":"prior to ver5.7.1","status":"affected"}]},{"vendor":"Japan Total System Co.,Ltd.","product":"GroupSession ZION","versions":[{"version":"prior to ver5.7.1","status":"affected"}]}],"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":4.7,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N"}},{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV4_0":{"version":"4.0","baseSeverity":"MEDIUM","baseScore":5.1,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1188","description":"Initialization of a resource with an insecure default","lang":"en-US","type":"CWE"}]}],"providerMetadata":{"shortName":"jpcert","orgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","dateUpdated":"2025-12-12T05:02:58.824Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-12-12T20:25:44.579958Z","id":"CVE-2025-64781","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-12-12T20:26:03.855Z"}}]}}}