CVE-2026-3844

CriticalPublished

Breeze Cache <= 2.4.4 - Unauthenticated Arbitrary File Upload via fetch_gravatar_from_remote

Published: Apr 23, 2026
Updated: Apr 23, 2026
Assigning CNA: Wordfence
Evidence observed: Aug 25, 2026

Primary CVSS

9.8/ 10Critical

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

3.8%

Low · next 30 days

Percentile: 89.7%
Model date: Oct 15, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

Repository evidence: Files: 1 · Repositories: 1

1 Template

Breeze <= 2.4.4 - Arbitrary File UploadTemplate
http/cves/2026/CVE-2026-3844.yaml
Nuclei Templates
DetectionEvidence observed: Sep 26, 2026Revision: 17f5725dc10cRelated tool
Declared conditions
- network: http($.protocol_keys)
- verification: dsl($.matchers[*].type)

CVE-2026-3844Exploit
WordPress - Breeze Cache <= 2.4.4 - Unauthenticated Arbitrary File Upload
CVE-2026-3844

Responsible use

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