CVE-2025-66074

Webhooks <= 3.3.8 - Unauthenticated Arbitrary File Upload

criticalUnrestricted Upload of File with Dangerous Type

9.8

CVSS Score

9.8

CVSS Score

critical

Severity

3.3.9

Patched in

Time to patch

Description

The WP Webhooks – Automate repetitive tasks by creating powerful automation workflows directly within WordPress plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in all versions up to, and including, 3.3.8. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

CVSS Vector Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

High

Confidentiality

High

Integrity

High

Availability

Technical Details

Affected versions<=3.3.8

PublishedDecember 12, 2025

Last updatedDecember 19, 2025

Affected pluginwp-webhooks

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/7e402e3e-7b11-4931-8a4b-a80d26b9eb04?source=api-prod

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