Vulnerability · Published Aug 16, 2021 · Assigned by mitre
CVE-2021-38751
Medium 4.3
In plain English
A medium-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.5% (higher than 85% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei.
Severity (CVSS NVD)4.3Medium
Exploit odds (30 days)2.5%top 15.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Nuclei
Official 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.
Affected products (as reported)
References
- https://github.com/exponentcms/exponent-cms/issues/1544 x_refsource_MISC