CVE-2025-12637 Elastic Theme Editor <= 0.0.3 - Authenticated (Subscriber+) Arbitrary File Upload
Authenticated attackers can upload arbitrary files via a dynamic code generation feature, 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-2025-12637?
CVE-2025-12637 is a high-severity vulnerability in koopersmith Elastic Theme Editor, published on 11 Nov 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Elastic Theme Editor plugin for WordPress is vulnerable to arbitrary file uploads due to a dynamic code generation feature in the process_theme function in all versions up to, and including, 0.0.3. 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-94
Which versions are affected by CVE-2025-12637?
How do I fix CVE-2025-12637?
No fix has been published for CVE-2025-12637 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-12637 being exploited?
There is no known exploitation of CVE-2025-12637 in the wild and no public exploit code.
Sources
Also known as GHSA-fx5w-2jmg-j2wm.