VulnerabilityModified
CVE-2021-38751
A modified HTTP header can change links on the webpage to an arbitrary value, leading to a possible attack vector for MITM.
MEDIUM 4.3EPSS 2.47%
Does this matter?
Lower severity and a low EPSS score (2.47%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- EPSS
- 2.47% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-116
- Affected
- exponentcms/exponentcms
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.