CVE-2021-38751 Open redirect in n/a
Attackers can manipulate HTTP Host headers to alter webpage links, potentially facilitating man-in-the-middle attacks against Exponent CMS users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-38751?
CVE-2021-38751 is a medium-severity vulnerability in n/a, published on 16 Aug 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
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.
Weakness: CWE-116
Which versions are affected by CVE-2021-38751?
It affects 1 product.
Products include Exponentcms Exponentcms.
How do I fix CVE-2021-38751?
No fix has been published for CVE-2021-38751 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-38751 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-38751 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-mg75-hvvv-r45q.