What’s Vulnerable › Vulnerabilities
CVE-2026-16650: Charitable < 1.8.12 - Unauthenticated Donation Payment-Status Manipulation via Square Webhook Signature Bypass
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-21 · updated 2026-10-16
- Weakness: CWE-345
Description
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 products
- Charitable: before 1.8.12 — fixed in 1.8.12
How to fix
Upgrade to a fixed version: Charitable 1.8.12. Check the vendor advisory for mitigations.
References
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