CVE-2026-111278CWE-804

CVE-2026-111278

Medium · published October 16, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
23.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00321 · 23.9th percentile
Weakness
CWE-804 · Guessable CAPTCHA
Published
2026-10-16T02:19Z
References (5)
https://github.com/nivocart/nivocart · [email protected]https://github.com/nivocart/nivocart/blob/5bc2c3fc7caed9846b58959183f8ccf599cd4399/upload/catalog/controller/information/contact.php#L144-L150 · [email protected]https://github.com/nivocart/nivocart/blob/5bc2c3fc7caed9846b58959183f8ccf599cd4399/upload/catalog/view/theme/default/template/information/contact.tpl#L43 · [email protected]https://github.com/nivocart/nivocart/issues/27 · [email protected]https://www.vulncheck.com/advisories/nivocart-through-2.5.1-captcha-bypass-via-answer-disclosed-in-page-html · [email protected]
EPSS history
Timeline
  • 17 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 15 OCT 21:43Z
    NivoCart through 2.5.1 CAPTCHA Bypass via Answer Disclosed in Page HTML
    cvelistv5
  • 15 OCT 21:43Z
    NivoCart through 2.5.1 CAPTCHA Bypass via Answer Disclosed in Page HTML
    cvelistv5