CVE-2026-4650 MEDIUM

CVE-2026-4650: FundPress <= 2.0.8 - Missing Authorization to Unauthenticated Arbitrary Donation Status Modification via donate_action_status AJAX Handler

Vendor Thimpress
Product FundPress – WordPress Donation Plugin
Weakness CWE-862 · Missing authorization
Published May 2, 2026
Last update May 4, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The FundPress – WordPress Donation Plugin for WordPress is vulnerable to authorization bypass in versions up to and including 2.0.8. This is due to missing authorization and nonce verification in the donate_action_status() AJAX handler, which is registered to be accessible to unauthenticated users via wp_ajax_nopriv. The function only validates that the schema parameter equals 'donate-ajax' and that the required POST parameters are present, but fails to verify user capabilities, nonce tokens, or donation ownership. This makes it possible for unauthenticated attackers to modify the status of any donation by providing its ID (which are sequential integers and easily enumerable), allowing them to mark donations as completed, pending, cancelled, or any arbitrary status, potentially triggering email notifications and related side effects.

Explanation of Vulnerability in Simple Terms

02Summary

FundPress versions up to 2.0.8 lack proper authorization checks, allowing unauthenticated attackers to modify donation data or settings. The vulnerability requires only network access and no user interaction. Site administrators should update to a version newer than 2.0.8 immediately.

What an attacker can do

03Attacker Capabilities

Modify donation records or plugin settings without authentication.

Potential impact on your site

04Site Impact

Donation data integrity compromised; attackers can alter donation amounts, donor info, or plugin configuration.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

May 2, 2026 CVE published
May 4, 2026 Record updated