{"id":"CVE-2026-71294","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-71294","generatedAt":"2026-10-28T02:22:52.085Z","title":"Cotonti CMS's Comments plugin deserializes user-supplied data without restricting the classes that may be instantiated.","description":"Cotonti CMS's Comments plugin deserializes user-supplied data without restricting the classes that may be instantiated. In plugins/comments/controllers/actions/CreateAction.php, a POST parameter obtained via (trim-only sanitization) is passed to with no restriction, reachable by any member with write access to comments (the default setting in plugins/comments/comments.setup.php).","published":"2026-08-05T13:24:54.000Z","lastModified":"2026-08-26T17:13:25.000Z","status":"Deferred","sourceIdentifier":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","cvss":{"version":"3.1","score":7.6,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L"},"cwe":["CWE-502"],"affected":[],"epss":{"score":0.00379,"percentile":0.31659,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.38%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/Cotonti/Cotonti","source":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c"},{"url":"https://github.com/Cotonti/Cotonti/blob/master/plugins/comments/controllers/actions/CreateAction.php","source":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-71294","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}