CVE-2025-4800 MasterStudy LMS Pro <= 4.7.0 - Authenticated (Subscriber+) Arbitrary File Upload
Authenticated attackers can upload arbitrary files via missing validation, potentially leading to remote code execution on the server.
- 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-2025-4800?
CVE-2025-4800 is a high-severity vulnerability in StylemixThemes MasterStudy LMS Pro, published on 28 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The MasterStudy LMS Pro plugin for WordPress is vulnerable to arbitrary file uploads due to a missing file type validation in the stm_lms_add_assignment_attachment function in all versions up to, and including, 4.7.0. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload arbitrary files on the affected site's server, which may make remote code execution possible.
Weakness: CWE-434
Which versions are affected by CVE-2025-4800?
How do I fix CVE-2025-4800?
No fix has been published for CVE-2025-4800 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-4800 being exploited?
There is no known exploitation of CVE-2025-4800 in the wild and no public exploit code.
Sources
Also known as GHSA-6mvv-hjmg-x9rf.