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CVE-2026-119749

HIGH 8.7 CVSS 4.0
Published
November 4, 2026
Last modified
November 4, 2026
NVD status
Received
Reported by
disclosure@vulncheck.com
Weakness
CWE-1284
CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Affected WordPress components

  • Payment forms, Buy now buttons, and Invoicing System | GetPaid Plugin · invoicing
    Confirmed match Active
    Before 2.8.63
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • AyeCode Ltd Payment forms, Buy now buttons, and Invoicing System | GetPaid — Before 2.8.63

References

  • wordpress.org https://wordpress.org/plugins/invoicing/#developers
  • www.vulncheck.com https://www.vulncheck.com/advisories/getpaid-wordpress-plugin-negative-quantity-payment-bypass
  • nvd.nist.gov Official NVD record