CVE-2021-40098 Path traversal in n/a
Attackers can achieve remote code execution in Concrete CMS by exploiting a path traversal vulnerability in external forms via regular expressions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-40098?
CVE-2021-40098 is a critical path traversal vulnerability in Concretecms Concrete Cms, published on 27 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in Concrete CMS through 8.5.5. Path Traversal leading to RCE via external form by adding a regular expression.
Weakness: CWE-22
Which versions are affected by CVE-2021-40098?
It affects 1 product.
Products include Concretecms Concrete Cms.
How do I fix CVE-2021-40098?
No fix has been published for CVE-2021-40098 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2021-40098 being exploited?
There is no known exploitation of CVE-2021-40098 in the wild and no public exploit code.
Other vulnerabilities in Concretecms Concrete Cms
- CVE-2023-48648 Concrete CMS allows unauthorized access because directories can be created with insecure permissions
- CVE-2022-21829 Code injection in concrete CMS
- CVE-2021-22958 Server-Side Request Forgery vulnerability in concrete5
- CVE-2026-8134 Concrete CMS Vulnerable to Relative Path Traversal
- CVE-2022-30117 Path traversal in Concrete CMS
Sources
Also known as GHSA-j7gf-6gv8-p76h.