CVE-2026-56227
Capgo - Server-Side Request Forgery via Webhook URL Validation
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
Capgo before 12.128.2 contains a server-side request forgery vulnerability in webhook URL validation that allows loopback and internal addresses. Organization admins can configure webhooks pointing to localhost or 127.0.0.1, and when triggered, the backend performs outbound requests to these addresses with error responses disclosed to users.
| CWE | CWE-918 |
| Vendor | capgo |
| Product | capgo |
| Published | Jun 20, 2026 |
| Last Updated | Jun 22, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
Capgo / Capgo
0 < 12.128.2
References
Credits
🔍 Judel777