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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
AyeCode Ltd Payment forms, Buy now buttons, and Invoicing System | GetPaid unaffected
Version Status Constraints
0 affected < 2.8.63

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://wordpress.org/plugins/invoicing/#developers cve-icon cve-icon
https://www.vulncheck.com/advisories/getpaid-wordpress-plugin-negative-quantity-payment-bypass cve-icon cve-icon
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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

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

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: 2026-11-04T17:17:34.930

Link: CVE-2026-119749

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses