{"id":"CVE-2025-61950","state":"PUBLISHED","title":"In GroupSession, a Circular notice can be created with its memo field non-editable, but the authorization check is improperly implemented. With some crafted request, a logged-in us","description":"In GroupSession, a Circular notice can be created with its memo field non-editable, but the authorization check is improperly implemented. With some crafted request, a logged-in user may alter the memo field. The affected products and versions are GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior to ver5.3.3, and GroupSession ZION prior to ver5.3.2.","publishedAt":"2025-12-12T05:02:11.514Z","updatedAt":"2025-12-12T18:44:39.141Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/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 ver5.3.0","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"}]}],"references":["https://groupsession.jp/info/info-news/security20251208","https://jvn.jp/en/jp/JVN19940619/"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:09:48.677Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/61xxx/CVE-2025-61950.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-61950","state":"PUBLISHED","datePublished":"2025-12-12T05:02:11.514Z","dateUpdated":"2025-12-12T18:44:39.141Z","assignerShortName":"jpcert","assignerOrgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","dateReserved":"2025-11-27T05:42:07.740Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"In GroupSession, a Circular notice can be created with its memo field non-editable, but the authorization check is improperly implemented. With some crafted request, a logged-in user may alter the memo field. The affected products and versions are GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior to ver5.3.3, and GroupSession ZION prior to ver5.3.2."}],"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"}]}],"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":4.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"}},{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV4_0":{"version":"4.0","baseSeverity":"MEDIUM","baseScore":5.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","description":"Authorization bypass through user-controlled key","lang":"en-US","type":"CWE"}]}],"providerMetadata":{"shortName":"jpcert","orgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","dateUpdated":"2025-12-12T05:02:11.514Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-12-12T18:44:29.422060Z","id":"CVE-2025-61950","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-12-12T18:44:39.141Z"}}]}}}