CVE-2026-111110 | BDVDB-2026-390697 Detail
stiofansislandPayment forms, Buy now buttons, and Invoicing System | GetPaid
Description#
The Payment forms, Buy now buttons, and Invoicing System | GetPaid plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'mmdwqzpoxadd' parameter in all versions up to, and including, 2.8.61 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The required nonce (getpaid_form_nonce) is publicly emitted to all visitors via wp_localize_script as WPInv.formNonce, meaning no authentication or prior nonce leak is needed; the stored payload fires when an administrator views the affected invoice's Payment Form Details metabox.
Impact#
Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact none. Attack vector: network.
Weaknesses#
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References#
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2161ecdc-d3c2-4ede-9c42-28f30fa0f91e?source=cve
- https://plugins.trac.wordpress.org/browser/invoicing/tags/2.8.61/includes/admin/meta-boxes/class-mb-payment-form.php#L30
- https://plugins.trac.wordpress.org/browser/invoicing/tags/2.8.61/includes/payments/class-getpaid-checkout.php#L293
- https://plugins.trac.wordpress.org/browser/invoicing/tags/2.8.61/includes/payments/class-getpaid-checkout.php#L402
- https://plugins.trac.wordpress.org/browser/invoicing/tags/2.8.61/includes/payments/class-getpaid-payment-form-submission.php#L150
- https://plugins.trac.wordpress.org/browser/invoicing/tags/2.8.61/includes/class-wpinv-ajax.php#L359
- https://github.com/AyeCode/invoicing/archive/refs/heads/master.zip
- https://plugins.trac.wordpress.org/changeset/3750463/invoicing/trunk/includes/admin/meta-boxes/class-mb-payment-form.php
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.