What is CVE-2026-16650?

CVE-2026-16650 is a medium-severity vulnerability in Charitable, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.3/10. Published 2026-08-21.

How severe is CVE-2026-16650?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Charitable

CVE-2026-16650

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.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Unknown Charitable

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-16650?: CVE-2026-16650 is a medium-severity vulnerability in Charitable, classified under Insufficient Verification of Data Authenticity. CVSS score: 5.3/10. Published 2026-08-21.
How severe is CVE-2026-16650?: Medium severity. CVSS v3 base score is 5.3 out of 10.