CVE-2016-20052 Snews CMS 1.7 Unrestricted File Upload via snews_files
Unauthenticated attackers can upload malicious PHP files to achieve remote code execution on Snews CMS installations.
- 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-2016-20052?
CVE-2016-20052 is a critical vulnerability in Snewscms Snews CMS upload sheller, published on 4 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Snews CMS 1.7 contains an unrestricted file upload vulnerability that allows unauthenticated attackers to upload arbitrary files including PHP executables to the snews_files directory. Attackers can upload malicious PHP files through the multipart form-data upload endpoint and execute them by accessing the uploaded file path to achieve remote code execution.
Weakness: CWE-434
Which versions are affected by CVE-2016-20052?
It affects 1 product.
Products include Snewscms Snews.
How do I fix CVE-2016-20052?
No fix has been published for CVE-2016-20052 yet. Limit exposure of the affected software until one is available.
Is CVE-2016-20052 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20052 exists.
Other vulnerabilities in Snewscms Snews CMS upload sheller
Sources
Also known as GHSA-6p9p-r3m2-r76g.