{"id":"CVE-2023-27304","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-27304","generatedAt":"2026-10-25T17:57:26.266Z","title":"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.","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.","published":"2023-05-23T02:15:09.000Z","lastModified":"2026-06-17T05:44:45.000Z","status":"Modified","sourceIdentifier":"vultures@jpcert.or.jp","cvss":{"version":"3.1","score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"},"cwe":["CWE-862"],"affected":["cybozu/garoon"],"epss":{"score":0.00513,"percentile":0.42922,"date":"2026-10-24","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.51%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://cs.cybozu.co.jp/2023/007698.html","tags":["Vendor Advisory"],"source":"vultures@jpcert.or.jp"},{"url":"https://jvn.jp/en/jp/JVN41694426/","tags":["Third Party Advisory"],"source":"vultures@jpcert.or.jp"},{"url":"https://cs.cybozu.co.jp/2023/007698.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://jvn.jp/en/jp/JVN41694426/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-27304","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}