Concrete CMS version 9 before 9.2.8 and previous versions before 8.5.16 are vulnerable to Stored XSS in the Custom Class page editing. Prior to the fix, a rogue administrator could insert malicious code in the custom class field due to insufficient validation of administrator provided data. The Concrete CMS security team gave this vulnerability a CVSS v3.1 score of 3.1 with a vector of AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:L https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator . Thanks Alexey Solovyev for reporting.
{ "nvd_published_at": "2024-04-03T19:15:44Z", "cwe_ids": [ "CWE-20", "CWE-79" ], "severity": "LOW", "github_reviewed": true, "github_reviewed_at": "2024-04-03T21:54:05Z" }