CVE-2021-3256 Path traversal in n/a
Attackers can read arbitrary files from the server via the html_url parameter in KuaiFanCMS, exposing sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-3256?
CVE-2021-3256 is a medium-severity path traversal vulnerability in n/a, published on 11 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
KuaiFanCMS V5.x contains an arbitrary file read vulnerability in the html_url parameter of the chakanhtml.module.php file.
Weakness: CWE-88
Which versions are affected by CVE-2021-3256?
It affects 1 product.
Products include Kuaifan Kuaifancms.
How do I fix CVE-2021-3256?
No fix has been published for CVE-2021-3256 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-2021-3256 being exploited?
There is no known exploitation of CVE-2021-3256 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-vwrx-c7f2-w23m.