CVE-2026-3844 Breeze Cache <= 2.4.4 - Unauthenticated Arbitrary File Upload via fetch_gravatar_from_remote
Unauthenticated attackers can upload arbitrary files to the server if the Gravatar hosting feature is enabled, potentially leading to remote code execution.
- 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-2026-3844?
CVE-2026-3844 is a critical vulnerability in cloudways Breeze Cache, published on 23 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Breeze Cache plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'fetch_gravatar_from_remote' function in all versions up to, and including, 2.4.4. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. The vulnerability can only be exploited if "Host Files Locally - Gravatars" is enabled, which is disabled by default.
Weakness: CWE-434
Which versions are affected by CVE-2026-3844?
How do I fix CVE-2026-3844?
No fix has been published for CVE-2026-3844 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-3844 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3844 exists.
Public exploit code: 1 Nuclei template and 10 proofs of concept on GitHub.
Sources
Also known as GHSA-c529-q7mw-hq6j.