{"id":"CVE-2021-31780","title":"In app/Model/MispObject.php in MISP 2.4.141, an incorrect sharing group association could lead to information disclosure on an event edit","summary":"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 igno…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-212"],"vendor":"misp-project","product":"misp","affected":["misp = 2.4.141"],"published":"2021-04-23","updated":"2026-06-22","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-31780","references":[{"url":"https://github.com/MISP/MISP/commit/a0f08501d2850025892e703f40fb1570c7995478","label":"cve@mitre.org"},{"url":"https://github.com/MISP/MISP/commit/a0f08501d2850025892e703f40fb1570c7995478","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.01047,"epssPercentile":0.62739,"ingestedAt":"2026-06-29T13:24:33.473Z","slug":"CVE-2021-31780","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `misp = 2.4.141`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}