CVE-2026-111278
NivoCart through 2.5.1 CAPTCHA Bypass via Answer Disclosed in Page HTML
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-804 |
| Vendor | nivocart |
| Product | nivocart |
| Published | Oct 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected Versions
nivocart / nivocart
0 ≤ 2.5.1
References
github.com: https://github.com/nivocart/nivocart/issues/27 github.com: https://github.com/nivocart/nivocart/blob/5bc2c3fc7caed9846b58959183f8ccf599cd4399/upload/catalog/controller/information/contact.php#L144-L150 github.com: https://github.com/nivocart/nivocart/blob/5bc2c3fc7caed9846b58959183f8ccf599cd4399/upload/catalog/view/theme/default/template/information/contact.tpl#L43 github.com: https://github.com/nivocart/nivocart vulncheck.com: https://www.vulncheck.com/advisories/nivocart-through-2.5.1-captcha-bypass-via-answer-disclosed-in-page-html
Credits
Aaron Amran Bin Amiruddin (@aaronamran)