A HTTP Host header attack exists in ExponentCMS 2.6 and below in /exponent_constants.php. A modified HTTP header can change links on the webpage to an arbitrary value, leading to a possible attack vector for MITM.
{ "versions": [ { "introduced": "0" }, { "fixed": "2.6" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-38751.json"