{"id":"CVE-2026-85177","title":"CRMEB through 6.0.0 fails to validate message ownership in the edit_message handler of MessageSystemController.php, allowing authenticated users to modify arbitrary system inbox messages","summary":"CRMEB through 6.0.0 fails to validate message ownership in the edit_message handler of MessageSystemController.php, allowing authenticated users to modify arbitrary system inbox messages. Attackers can update any message's columns includ…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","cwe":["CWE-639"],"published":"2026-09-03","updated":"2026-09-23","sourceUpdated":"2026-09-23T17:17:45.643","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-85177","references":[{"url":"https://github.com/crmeb/CRMEB","label":"disclosure@vulncheck.com"},{"url":"https://github.com/crmeb/CRMEB/blob/v6.0.0/crmeb/app/api/controller/v1/user/MessageSystemController.php","label":"disclosure@vulncheck.com"},{"url":"https://github.com/crmeb/CRMEB/issues/120","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/crmeb-through-6.0.0-unauthorized-message-modification-via-edit-message","label":"disclosure@vulncheck.com"},{"url":"https://github.com/crmeb/CRMEB/issues/120","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.0038,"epssPercentile":0.31808,"ingestedAt":"2026-09-23T17:28:14.822Z","vendor":"crmeb","product":"CRMEB","affected":["CRMEB <= 6.0.0"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-03T14:24:31.776473Z"},"slug":"CVE-2026-85177","body":"## Overview\n\nCRMEB through 6.0.0 fails to validate message ownership in the edit_message handler of MessageSystemController.php, allowing authenticated users to modify arbitrary system inbox messages. Attackers can update any message's columns including is_del, look, and uid to delete, mark read, or reassign victim notifications without authorization.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":29.7,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":210225,"id":"CVE-2026-85177","ts":1790264815784,"field":"exploit_available","old":"false","new":"true"}]}