The GetPaid plugin for WordPress before 2.8.63 contains an improper input validation vulnerability that allows unauthenticated attackers to bypass payment processing by submitting a negative item quantity on a public payment form. Attackers can exploit the unchecked quantity value in process_item() to produce a negative line subtotal that reduces the invoice total to zero, causing process_free_payment() to mark the invoice as paid without any actual gateway charge.
History

Wed, 04 Nov 2026 17:00:00 +0000

Type Values Removed Values Added
Description The GetPaid plugin for WordPress before 2.8.63 contains an improper input validation vulnerability that allows unauthenticated attackers to bypass payment processing by submitting a negative item quantity on a public payment form. Attackers can exploit the unchecked quantity value in process_item() to produce a negative line subtotal that reduces the invoice total to zero, causing process_free_payment() to mark the invoice as paid without any actual gateway charge.
Title GetPaid WordPress Plugin < 2.8.63 Negative Quantity Payment Bypass
Weaknesses CWE-1284
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-11-04T16:52:16.508Z

Updated: 2026-11-04T20:26:46.658Z

Reserved: 2026-10-30T15:31:52.079Z

Link: CVE-2026-119749

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-04T17:17:34.930

Modified: 2026-11-04T21:17:56.257

Link: CVE-2026-119749

cve-icon Redhat

No data.