Description
Capgo before 12.128.2 allows non-admin API keys to read webhook signing secrets via Supabase REST due to insufficient row-level security policies on the webhooks table. Attackers can retrieve the webhook secret and forge valid X-Capgo-Signature headers to send authenticated webhook events to configured receivers, breaking webhook authenticity and integrity.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Capgo | Capgo | < 12.128.2 | 12.128.2 |
References
- GitHub Security Advisory (GHSA-qrrx-x3qf-x87v) vendor-advisory
- VulnCheck Advisory: Capgo - Webhook Signing Secret Disclosure via Non-Admin API Key third-party-advisory