{"id":"CVE-2026-116216","title":"MacCMS v10 through 2026.1000.4056 Comment Impersonation via user_id Mass Assignment","summary":"MacCMS v10 through 2026.1000.4056 contains a mass assignment vulnerability in index/Comment::saveData() that allows unauthenticated attackers to set arbitrary mac_comment columns including user_id. Attackers can submit anonymous comments…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","cvssSource":"cna","cwe":["CWE-915"],"vendor":"maccmspro","product":"maccms10","affected":["maccms10 <= 2021.1000.2000","maccms10 <= 2026.1000.4056"],"published":"2026-10-26","updated":"2026-10-26","sourceUpdated":"2026-10-26T13:08:48.563Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116216","references":[{"url":"https://github.com/maccmspro/maccms10/issues/30","label":"GitHub Issue #30"},{"url":"https://github.com/maccmspro/maccms10/blob/7f388ee0008faf5b01e5df7bf5e5a6ff4bbe13e8/application/index/controller/Comment.php#L37-L95"},{"url":"https://github.com/maccmspro/maccms10"},{"url":"https://www.vulncheck.com/advisories/maccms-v10-through-2026.1000.4056-comment-impersonation-via-user-id-mass-assignment","label":"VulnCheck Advisory: MacCMS v10 through 2026.1000.4056 Comment Impersonation via user_id Mass Assignment"}],"tags":["cve.org"],"ingestedAt":"2026-10-26T14:27:31.830Z","slug":"CVE-2026-116216","body":"## Overview\n\nMacCMS v10 through 2026.1000.4056 contains a mass assignment vulnerability in index/Comment::saveData() that allows unauthenticated attackers to set arbitrary mac_comment columns including user_id. Attackers can submit anonymous comments with a crafted user_id parameter to attribute them to any registered member, displaying that member's avatar and impersonating them.\n\n## Affected\n\n- `maccms10 <= 2021.1000.2000`\n- `maccms10 <= 2026.1000.4056`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}