CVE-2026-3844— Breeze Cache <= 2.4.4 - Unauthenticated Arbitrary File Upload via fetch_gravatar_from_remote
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I. Basic Information for CVE-2026-3844
Vulnerability Information
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Vulnerability Title
Breeze Cache <= 2.4.4 - Unauthenticated Arbitrary File Upload via fetch_gravatar_from_remote
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
危险类型文件的不加限制上传
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin Breeze Cache 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Breeze Cache 2.4.4及之前版本存在代码问题漏洞，该漏洞源于fetch_gravatar_from_remote函数中缺少文件类型验证，可能导致未经身份验证的攻击者上传任意文件，从而实现远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| cloudways | Breeze Cache | 0 ~ 2.4.4 | - |
II. Public POCs for CVE-2026-3844
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Breeze Cache WordPress plugin <= 2.4.4 contains an unrestricted file upload vulnerability caused by missing file type validation in 'fetch_gravatar_from_remote' function, letting unauthenticated attackers upload arbitrary files, exploit requires 'Host Files Locally - Gravatars' enabled. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-3844.yaml | POC Details |
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IV. Related Vulnerabilities
Same vendor: cloudways
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