CVE-2026-111278
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk24th percentile - higher than 24% of all known CVEs
Summary
NivoCart through 2.5.1 contains a CAPTCHA bypass vulnerability because the expected code is printed as plain text in the HTML. Unauthenticated attackers can fetch protected forms, extract the captcha_image value, and automate spam, registrations, reviews, and account deletion requests.
Risk Assessment
The lack of effective CAPTCHA protection enables mass automated form abuse, site spam, fake registrations, and unauthorized account deletion requests.
Recommendation
Upgrade NivoCart beyond version 2.5.1 and implement a proper CAPTCHA solution where the code is not exposed in the HTML output.
Other vulnerabilities in NivoCart
See all- CVE-2026-111277High
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.
- CVE-2026-94107High
NivoCart through 2.4.0 contains a predictable password reset token vulnerability in the forgotten.php endpoint that generates recovery codes using substr(md5(mt_rand()), 0, 10). Attackers who know an administrator's email address can request a password reset and predict the token to gain administrative account access without rate limiting or expiration.
- CVE-2026-94105Medium
NivoCart through 2.4.0 contains a destructive configuration write vulnerability in the admin password reset controller that allows unauthenticated attackers to disable password recovery by supplying an invalid code parameter. Attackers can send a GET request with a missing or incorrect code to rewrite the config_password setting to 0, disabling self-service password recovery until an administrator manually re-enables it.
- CVE-2026-94104High
NivoCart through 2.4.0 contains an arbitrary file upload vulnerability in the File Manager multi() endpoint that fails to validate file extensions for new filenames or when the chunks parameter is 2 or higher. Attackers with view-only back-office access can upload PHP files to the web-accessible image/data/ directory and execute them for remote code execution.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS