{"id":"CVE-2020-8894","title":"An issue was discovered in MISP before 2.4.121","summary":"An issue was discovered in MISP before 2.4.121. ACLs for discussion threads were mishandled in app/Controller/ThreadsController.php and app/Model/Thread.php.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","vendor":"misp-project","product":"misp","affected":["misp < 2.4.121"],"patched":["misp 2.4.121"],"published":"2020-02-12","updated":"2026-06-22","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2020-8894","references":[{"url":"https://github.com/MISP/MISP/commit/9400b8bc8699435d84508e598aca98a31affd77c","label":"cve@mitre.org"},{"url":"https://github.com/MISP/MISP/compare/v2.4.120...v2.4.121","label":"cve@mitre.org"},{"url":"https://zigrin.com/advisories/misp-mishandling-of-discussion-threads-acls/","label":"cve@mitre.org"},{"url":"https://github.com/MISP/MISP/commit/9400b8bc8699435d84508e598aca98a31affd77c","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/MISP/MISP/compare/v2.4.120...v2.4.121","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://zigrin.com/advisories/misp-mishandling-of-discussion-threads-acls/","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.01399,"epssPercentile":0.71309,"ingestedAt":"2026-06-29T13:24:33.442Z","slug":"CVE-2020-8894","body":"## Overview\n\nAn issue was discovered in MISP before 2.4.121. ACLs for discussion threads were mishandled in app/Controller/ThreadsController.php and app/Model/Thread.php.\n\n## Affected\n\n- `misp < 2.4.121`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `misp 2.4.121`","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.3,"exploitation":0,"ransomware":0},"changes":[]}