Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/dialog/logs/delete. The The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Drori (Tenzai) for reporting.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8409.json",
"cna_assigner": "ConcreteCMS",
"cwe_ids": [
"CWE-1275",
"CWE-352"
]
}{
"cpe": "cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "9.0"
},
{
"last_affected": "9.5.0"
},
{
"introduced": "9.0.0"
},
{
"fixed": "9.5.1"
}
],
"source": [
"AFFECTED_FIELD",
"CPE_RANGE"
]
}