Auth bypass in Fundiin Cho Woocommerce
CVE-2026-81649
The Fundiin cho WooCommerce WordPress plugin through 3.4.0 does not have proper authorisation on several of its REST API routes, relying instead on a credential that is identical on every installation, allowing unauthenticated attackers to disclose the store's payment credentials and customer order data, overwrite the payment gateway configuration so that payments are credited elsewhere, and mark unpaid orders as paid. The same missing authorisation also allows arbitrary script to be stored in a field which is output unescaped on the classic checkout, leading to unauthenticated stored XSS on stores that do not use the block-based checkout.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Fundiin Cho Woocommerce
Weakness classification (CWE)
References
- wpscan.com/vulnerability/28cec871-1f17-48c7-b836-db705fc5cffa/ (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-81649?
- CVE-2026-81649 is a critical-severity vulnerability in Fundiin Cho Woocommerce, classified under Incorrect Authorization. CVSS score: 9.1/10. Published 2026-10-11.
- How severe is CVE-2026-81649?
- Critical severity. CVSS v3 base score is 9.1 out of 10.