CVE-2026-56330 Capgo - Open Redirect via Unvalidated Stripe Billing URLs
Authenticated attackers can exploit unvalidated URL parameters in Capgo billing endpoints to redirect users to malicious domains for phishing.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-56330?
CVE-2026-56330 is a medium-severity vulnerability in Capgo, published on 20 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-601
Which versions are affected by CVE-2026-56330?
How do I fix CVE-2026-56330?
No fix has been published for CVE-2026-56330 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-56330 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56330 exists.
Sources
Also known as GHSA-cg8c-732h-jg2p, GHSA-grc7-98pf-h8hq.