CVE-2020-21005 File upload in n/a
Authenticated users can upload malicious files to WellCMS to execute arbitrary code via webshell.
- 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-2020-21005?
CVE-2020-21005 is a medium-severity vulnerability in n/a, published on 3 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
WellCMS 2.0 beta3 is vulnerable to File Upload. A user can log in to the CMS background and upload a picture. Because the upload file type is controllable, the user can modify the upload file type to get webshell.
Weakness: CWE-434
Which versions are affected by CVE-2020-21005?
It affects 1 product.
Products include Wellcms Wellcms.
How do I fix CVE-2020-21005?
No fix has been published for CVE-2020-21005 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-21005 being exploited?
There is no known exploitation of CVE-2020-21005 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-w6gx-rprc-p2qj.