Auth bypass in Nivocart
CVE-2026-111277
NivoCart through 2.5.1 contains a missing authorization vulnerability in the download() action of account/order that allows unauthenticated attackers to retrieve guest order invoices by supplying an order_id. Attackers can iterate the order_id parameter, which matches guest orders stored with customer_id 0, to disclose guest names, addresses, telephone numbers, emails, purchased items, and totals.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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
Weakness classification (CWE)
References
- github.com/nivocart/nivocart/issues/26 (issue-tracking)
- github.com/nivocart/nivocart/blob/5bc2c3fc7caed9846b58959183f8ccf599cd4399/uplo… (technical-description)
- github.com/nivocart/nivocart/blob/5bc2c3fc7caed9846b58959183f8ccf599cd4399/uplo… (technical-description)
- github.com/nivocart/nivocart (product)
- www.vulncheck.com/advisories/nivocart-through-2.5.1-guest-order-invoice-disclos… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111277?
- CVE-2026-111277 is a high-severity vulnerability in Nivocart, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-10-15.
- How severe is CVE-2026-111277?
- High severity. CVSS v3 base score is 7.5 out of 10.