Vulnerability in Nivocart
CVE-2026-111278
NivoCart through 2.5.1 contains a CAPTCHA bypass vulnerability that allows unauthenticated attackers to defeat form protection because the expected code is printed as plain text in the HTML. Attackers can fetch protected forms, extract the captcha_image value with a pattern match, and submit it to automate spam, registrations, reviews, and account deletion requests.
Published · last modified .
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
Weakness classification (CWE)
References
- github.com/nivocart/nivocart/issues/27 (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-captcha-bypass-via-answer-d… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111278?
- CVE-2026-111278 is a medium-severity vulnerability in Nivocart, classified under CWE-804. CVSS score: 5.3/10. Published 2026-10-15.
- How severe is CVE-2026-111278?
- Medium severity. CVSS v3 base score is 5.3 out of 10.