{"id":"CVE-2023-27304","aliases":["EUVD-2023-31081","GHSA-v657-8crh-gpm6"],"status":"published","title":"Operation restriction bypass vulnerability in Message and Bulletin of Cybozu Garoon 4.6.0 to 5.9...","description":"Operation restriction bypass vulnerability in Message and Bulletin of Cybozu Garoon 4.6.0 to 5.9.2 allows a remote authenticated attacker to alter the data of Message and/or Bulletin.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00513,"percentile":0.44205,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2023-05-23T00:00:00Z","modified":"2026-06-17T05:44:44Z","products":[{"vendor":"cybozu","product":"garoon"},{"vendor":"cybozu, inc.","product":"cybozu garoon"}],"references":[{"url":"https://cs.cybozu.co.jp/2023/007698.html","tags":["x_transferred","Vendor Advisory"]},{"url":"https://jvn.jp/en/jp/JVN41694426/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27304"},{"url":"https://jvn.jp/en/jp/JVN41694426"},{"url":"https://github.com/advisories/GHSA-v657-8crh-gpm6"}],"sources":{"cve":[{"id":"CVE-2023-27304","description":"Operation restriction bypass vulnerability in Message and Bulletin of Cybozu Garoon 4.6.0 to 5.9.2 allows a remote authenticated attacker to alter the data of Message and/or Bulletin.","status":"published","published":"2023-05-23T00:00:00Z","modified":"2025-01-17T18:02:06.527Z","cwes":["CWE-862"],"updated_at":"2026-11-02T14:35:26.63732Z"}],"euvd":[{"id":"EUVD-2023-31081","description":"Operation restriction bypass vulnerability in Message and Bulletin of Cybozu Garoon 4.6.0 to 5.9.2 allows a remote authenticated attacker to alter the data of Message and/or Bulletin.","status":"published","published":"2023-05-23T00:00:00Z","modified":"2025-01-17T18:02:06Z","updated_at":"2026-11-03T00:04:16.564106Z"}],"ghsa":[{"id":"GHSA-v657-8crh-gpm6","title":"Operation restriction bypass vulnerability in Message and Bulletin of Cybozu Garoon 4.6.0 to 5.9...","description":"Operation restriction bypass vulnerability in Message and Bulletin of Cybozu Garoon 4.6.0 to 5.9.2 allows a remote authenticated attacker to alter the data of Message and/or Bulletin.","status":"published","published":"2023-05-23T03:30:16Z","modified":"2025-01-17T18:31:11Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:59:35.754921Z"}],"nvd":[{"id":"CVE-2023-27304","description":"Operation restriction bypass vulnerability in Message and Bulletin of Cybozu Garoon 4.6.0 to 5.9.2 allows a remote authenticated attacker to alter the data of Message and/or Bulletin.","status":"published","published":"2023-05-23T02:15:09.397Z","modified":"2026-06-17T05:44:44.857Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:08:03.200773Z"}]}}