CVE-2026-16650

Charitable < 1.8.12 - Unauthenticated Donation Payment-Status Manipulation via Square Webhook Signature Bypass

The Charitable WordPress plugin before 1.8.12 does not verify the authenticity of incoming Square payment webhook events in a default configuration, allowing unauthenticated attackers to forge webhook notifications that mark donations as paid without any real payment.

Affected

Charitable

CVSS v3.1 WPSCAN

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

EPSS

0.16% chance of exploitation in the next 30 days, 5th percentile

Published

2026-08-21

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/da611bd1-0702-4cdd-b04c-ad7210f78cfe/

References

• CVE Record
• NVD entry