CVE-2025-4370: brizy Auth Bypass (CVSS 5.3)

Description

The Brizy – Page Builder plugin for WordPress is vulnerable to limited file uploads due to missing authorization on process_external_asset_urls function as well as missing path validation in store_file function in all versions up to, and including, 2.6.20. This makes it possible for unauthenticated attackers to upload .TXT files on the affected site's server.

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CVSS v3.1 Score

5.3

MEDIUM

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

Weakness Type (CWE)

CWE-862 Missing Authorization

Affected Products

Vendor	Product	Versions
brizy	brizy	< 2.6.21

References

Other References

https://plugins.trac.wordpress.org/browser/brizy/tags/2.6.17/editor/asset/media-processor.php#L27 https://plugins.trac.wordpress.org/browser/brizy/tags/2.6.17/editor/asset/static-file-trait.php#L44 https://www.wordfence.com/threat-intel/vulnerabilities/id/db18f6b4-600d-4c63-a9f2-4e3b8ab4fba3?source=cve

Frequently Asked Questions

What is CVE-2025-4370? +

The Brizy – Page Builder plugin for WordPress is vulnerable to limited file uploads due to missing authorization on process_external_asset_urls function as well as missing path validation in store_file function in all versions up to, and including, 2.6.20. This makes it possible for unauthenticated attackers to upload .TXT files on the affected site's server. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-4370? +

CVE-2025-4370 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-4370? +

CVE-2025-4370 affects products from brizy, specifically: brizy. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-4370? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-4370