Phishing redirects via unvalidated Stripe return URLs
Published Jun 20, 2026 · Updated Jun 20, 2026
Open redirect in Capgo before 12.128.2 allows remote authenticated users to send victims to attacker-controlled sites via billing links. The stripe_portal and stripe_checkout endpoints pass callbackUrl, successUrl, and cancelUrl values directly to Stripe redirect fields without allowlist validation. Exploitation requires org.update_billing permission and a victim to follow the generated Stripe link, enabling phishing or credential harvesting.
Summary
What happened
Open redirect in Capgo before 12.128.2 allows remote authenticated users to send victims to attacker-controlled sites via billing links. The stripe_portal and stripe_checkout endpoints pass callbackUrl, successUrl, and cancelUrl values directly to Stripe redirect fields without allowlist validation. Exploitation requires org.update_billing permission and a victim to follow the generated Stripe link, enabling phishing or credential harvesting.
The record
- CVE
- CVE-2026-56330
- Published
- Jun 20, 2026
- Updated
- Jun 20, 2026
- Vendor
- Capgo
- Product
- Capgo
- Classifications
- CWE-601, T1566.002
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 20, 2026CVE publishedPublication date reported by the CVE source.
- Jun 20, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <12.128.2
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Vendor billing redirect proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo