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.

CVSS v3.1

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

EPSS

27.70% chance of exploitation in the next 30 days, 98th percentile

Nuclei

critical · CWE-434

Published

2026-04-23

Proof-of-concept exploits (8)

• dinosn/CVE-2026-38445★ · 2026-04-25
• halilkirazkaya/CVE-2026-38444★ · 2026-04-30
• tausifzaman/CVE-2026-38443★ · 2026-04-24
• sahmsec/CVE-2026-38440★ · 2026-05-07
• 0xgh057r3c0n/CVE-2026-38441★ · 2026-04-24
• Dhananjayasj/CVE-2026-3844-Breeze-Cache-WordPress-Plugin-Remote-Code-Execution0★ · 2026-06-06
• Alevtinka19/CVE-2026-38440★ · 2026-08-29
• im-hanzou/CVE-2026-3844

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-3844.yaml

References

• CVE Record
• NVD entry

Related

• CVE-2019-13132
• CVE-2021-2109
• CVE-2022-22963
• CVE-2023-4966
• CVE-2024-20931
• CVE-2024-22369