CVE-2021-38751

Public Exploit

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.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 12.88% Top 10%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/exponentcms/exponent-cms/issues/1544 issue tracking exploit third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-38751?
CVE-2021-38751 has been scored as a medium severity vulnerability.
How to fix CVE-2021-38751?
To fix CVE-2021-38751, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-38751 being actively exploited in the wild?
It is possible that CVE-2021-38751 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~13% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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