CVE-2021-24253 Classyfrieds <= 3.8 - Authenticated Arbitrary File Upload to RCE
Authenticated users can upload arbitrary PHP files via the Add Listing feature, leading to remote code execution.
- 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-2021-24253?
CVE-2021-24253 is a high-severity vulnerability in Unknown Classyfrieds, published on 5 May 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Classyfrieds WordPress plugin through 3.8 does not properly check the uploaded file when an authenticated user adds a listing, only checking the content-type in the request. This allows any authenticated user to upload arbitrary PHP files via the Add Listing feature of the plugin, leading to RCE.
Weakness: CWE-434
Which versions are affected by CVE-2021-24253?
It affects 1 product.
Products include Classyfrieds Project Classyfrieds.
How do I fix CVE-2021-24253?
No fix has been published for CVE-2021-24253 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-24253 being exploited?
There is no known exploitation of CVE-2021-24253 in the wild and no public exploit code.
Sources
Also known as GHSA-rrx2-h7gv-6jx5.