CVE-2026-56330

Capgo - Open Redirect via Unvalidated Stripe Billing URLs

CVSS 4.8 MEDIUMEPSS 0.2%CWE-601

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 4.8EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

20 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Capgo before 12.128.2 contains an open redirect vulnerability in stripe_portal and stripe_checkout endpoints that accept unvalidated callbackUrl, successUrl, and cancelUrl parameters. Authenticated attackers can craft malicious billing URLs to redirect users to attacker-controlled domains for phishing and credential harvesting.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Affected products

Capgo · Capgo

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References

https://github.com/Cap-go/capgo/security/advisories/GHSA-grc7-98pf-h8hq https://www.vulncheck.com/advisories/capgo-open-redirect-via-unvalidated-stripe-billing-urls