{"id":"CVE-2021-31780","aliases":["EUVD-2021-18661","GHSA-gxpp-9rc5-5w9w"],"status":"published","title":"In app/Model/MispObject.php in MISP 2.4.141, an incorrect sharing group association could lead to...","description":"In app/Model/MispObject.php in MISP 2.4.141, an incorrect sharing group association could lead to information disclosure on an event edit. When an object has a sharing group associated with an event edit, the sharing group object is ignored and instead the passed local ID is reused.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01047,"percentile":0.64614,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-212"],"published":"2021-04-23T19:41:55Z","modified":"2026-10-20T10:54:40Z","products":[{"vendor":"misp-project","product":"misp"}],"references":[{"url":"https://github.com/MISP/MISP/commit/a0f08501d2850025892e703f40fb1570c7995478","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31780"},{"url":"https://github.com/advisories/GHSA-gxpp-9rc5-5w9w"}],"sources":{"cve":[{"id":"CVE-2021-31780","description":"In app/Model/MispObject.php in MISP 2.4.141, an incorrect sharing group association could lead to information disclosure on an event edit. When an object has a sharing group associated with an event edit, the sharing group object is ignored and instead the passed local ID is reused.","status":"published","published":"2021-04-23T19:41:55Z","modified":"2024-08-03T23:10:29.988Z","updated_at":"2026-11-02T14:33:05.331617Z"}],"euvd":[{"id":"EUVD-2021-18661","description":"In app/Model/MispObject.php in MISP 2.4.141, an incorrect sharing group association could lead to information disclosure on an event edit. When an object has a sharing group associated with an event edit, the sharing group object is ignored and instead the passed local ID is reused.","status":"published","published":"2021-04-23T19:41:55Z","modified":"2024-08-03T23:10:29Z","updated_at":"2026-11-03T03:24:38.423371Z"}],"ghsa":[{"id":"GHSA-gxpp-9rc5-5w9w","title":"In app/Model/MispObject.php in MISP 2.4.141, an incorrect sharing group association could lead to...","description":"In app/Model/MispObject.php in MISP 2.4.141, an incorrect sharing group association could lead to information disclosure on an event edit. When an object has a sharing group associated with an event edit, the sharing group object is ignored and instead the passed local ID is reused.","status":"published","published":"2022-05-24T17:48:21Z","modified":"2026-06-22T21:30:43Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-212"],"updated_at":"2026-11-02T15:08:56.309175Z"}],"nvd":[{"id":"CVE-2021-31780","description":"In app/Model/MispObject.php in MISP 2.4.141, an incorrect sharing group association could lead to information disclosure on an event edit. When an object has a sharing group associated with an event edit, the sharing group object is ignored and instead the passed local ID is reused.","status":"published","published":"2021-04-23T20:15:08.027Z","modified":"2026-06-22T19:23:18.58Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-212"],"updated_at":"2026-11-02T14:06:52.03307Z"}],"osv":[{"id":"CVE-2021-31780","description":"In app/Model/MispObject.php in MISP 2.4.141, an incorrect sharing group association could lead to information disclosure on an event edit. When an object has a sharing group associated with an event edit, the sharing group object is ignored and instead the passed local ID is reused.","status":"published","published":"2021-04-23T20:15:08.027Z","modified":"2026-10-20T10:54:40.735996323Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:19.483607Z"}]}}