HTTP Host Header Attack in ExponentCMS 2.6 and Below: Exploiting Arbitrary Link Modification Vulnerability

CVE-2021-38751 · MEDIUM Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

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.

Learn more about our Web App Pen Testing.