Arbitrary File Upload Vulnerability in Breeze Cache Plugin for WordPress
CVE-2026-3844

9.8CRITICAL

Key Information:

Vendor

WordPress
Status
Breeze Cache
Vendor
CVE Published:
23 April 2026

What is CVE-2026-3844?

The Breeze Cache plugin for WordPress has a security flaw that allows unauthenticated attackers to perform arbitrary file uploads. This vulnerability is due to inadequate file type validation in the 'fetch_gravatar_from_remote' function. The risk is present in all versions up to 2.4.4, specifically when the 'Host Files Locally - Gravatars' feature is enabled, which is not the default setting. If exploited, this could lead to remote code execution on the server hosting the affected site.

Affected Version(s)

Breeze Cache 0 <= 2.4.4

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/breeze/tags/2....
https://plugins.trac.wordpress.org/browser/breeze/tags/2....

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Hung Nguyen
.