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CRITICAL

CVE-2026-3844

CVSS v3

9.8

CRITICAL

EPSS Score

3.8 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

Published
2026-04-23

Frequently asked questions

What is CVE-2026-3844?

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.

Is CVE-2026-3844 actively exploited?

Active exploitation of CVE-2026-3844 has not been confirmed. Its EPSS score was 3.8% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-3844?

CVE-2026-3844 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2026-3844 affecting your environment?

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