Auth bypass in Sumit Payment Gateway For Woocommerce
CVE-2026-84091
The SUMIT Payment Gateway for WooCommerce WordPress plugin before 4.0.0 does not verify with the payment provider that a payment notification is genuine before marking the corresponding order as paid, allowing unauthenticated users to mark a pending order paid without completing payment.
Vulnerability class: Broken Authentication
Published .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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
- Sumit Payment Gateway For Woocommerce
Weakness classification (CWE)
References
- wpscan.com/vulnerability/10c7a9bd-eac0-49eb-9238-d7c477312166/ (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-84091?
- CVE-2026-84091 is a medium-severity vulnerability in Sumit Payment Gateway For Woocommerce, classified under Improper Authentication. CVSS score: 5.3/10. Published 2026-09-23.
- How severe is CVE-2026-84091?
- Medium severity. CVSS v3 base score is 5.3 out of 10.