What is CVE-2025-4102?

CVE-2025-4102 is a high-severity vulnerability in Fastlinemedia Beaver Builder, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2025-06-20.

How severe is CVE-2025-4102?

High severity. CVSS v3 base score is 7.2 out of 10.

Arbitrary file upload in Fastlinemedia Beaver Builder

CVE-2025-4102

The Beaver Builder Plugin (Starter Version) plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'save_enabled_icons' function in all versions up to, and including, 2.9.1. This makes it possible for authenticated attackers, with Administrator-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. The vulnerability was partially patched in version 2.9.1.

Vulnerability class: Unrestricted File Upload

EPSS: 0.005 (41.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Fastlinemedia Beaver_builder
The Beaver Builder Team Plugin (Starter Version) — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

security@wordfence.com (Third Party Advisory)
security@wordfence.com (Product)

Frequently asked questions

What is CVE-2025-4102?: CVE-2025-4102 is a high-severity vulnerability in Fastlinemedia Beaver Builder, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2025-06-20.
How severe is CVE-2025-4102?: High severity. CVSS v3 base score is 7.2 out of 10.