Business::GoCardless versions before 1.01 for Perl complete redirect flows without checking the session token, letting a leaked redirect flow ID create payments against another customer's mandate. confirm_resource takes no session token from the caller. It reads the redirect flow back from the GoCardless API and completes it with the token from that response, so the check that the flow is completed by the session that started it always passes. It then creates the requested payment or subscription against the flow's mandate. Since version 1.00, a flow that already has a mandate is returned as confirmed without being completed again, so the same ID creates a new payment on every call. A remote attacker who obtains another customer's redirect flow ID can create payments or subscriptions against that customer's mandate.
History

Sat, 07 Nov 2026 07:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 06 Nov 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}


Fri, 30 Oct 2026 23:15:00 +0000

Type Values Removed Values Added
First Time appeared Perl
Perl business::gocardless
Vendors & Products Perl
Perl business::gocardless

Fri, 30 Oct 2026 13:00:00 +0000

Type Values Removed Values Added
Description Business::GoCardless versions before 1.01 for Perl complete redirect flows without checking the session token, letting a leaked redirect flow ID create payments against another customer's mandate. confirm_resource takes no session token from the caller. It reads the redirect flow back from the GoCardless API and completes it with the token from that response, so the check that the flow is completed by the session that started it always passes. It then creates the requested payment or subscription against the flow's mandate. Since version 1.00, a flow that already has a mandate is returned as confirmed without being completed again, so the same ID creates a new payment on every call. A remote attacker who obtains another customer's redirect flow ID can create payments or subscriptions against that customer's mandate.
Title Business::GoCardless versions before 1.01 for Perl complete redirect flows without checking the session token, letting a leaked redirect flow ID create payments against another customer's mandate
Weaknesses CWE-639
References

cve-icon MITRE

Status: PUBLISHED

Assigner: CPANSec

Published: 2026-10-30T12:56:46.887Z

Updated: 2026-11-06T16:56:31.973Z

Reserved: 2026-10-29T11:38:31.745Z

Link: CVE-2026-119038

cve-icon Vulnrichment

Updated: 2026-11-06T16:56:26.155Z

cve-icon NVD

Status : Deferred

Published: 2026-10-30T13:18:32.783

Modified: 2026-11-06T17:17:18.533

Link: CVE-2026-119038

cve-icon Redhat

No data.