CVE-2021-38751

MediumCVSS 4.3/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-116

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/exponentcms/exponent-cms/issues/1544Exploit, Issue Tracking, Third Party Advisory
https://github.com/exponentcms/exponent-cms/issues/1544Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Aug 16, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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