Charitable accepts forged Square payment webhooks
Charitable before 1.8.12 does not authenticate incoming Square payment webhook events in the default configuration. An unauthenticated attacker can forge a webhook notification that marks a donation as paid even though no payment occurred.
- Component
- Charitable
- Plugin slug
charitable- Affected
- < 1.8.12
- Safe version
1.8.12- Published
- Aug 21, 2026
This CVE was published Aug 21, 2026 and is one of 20 known issues for this plugin.
Update, patch or deactivate.
Update Charitable to 1.8.12 or later. Reconcile paid donation records against Square transactions and review webhook logs for events that cannot be matched to a genuine provider payment.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical 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.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N