CVE-2026-44826
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk11th percentile - higher than 11% of all known CVEs
Summary
Vvveb CMS prior to version 1.0.8.2 does not validate the sign of the quantity parameter on the cart-add endpoint. Submitting a negative integer was accepted by the server, leading to negative values in order calculations.
Risk Assessment
The organization may face issues with order management as the system could record orders with negative totals, leading to incorrect financial records.
Recommendation
It is recommended to update Vvveb CMS to version 1.0.8.2 or later to mitigate this vulnerability and implement additional validations at the application level.
Other vulnerabilities in Vvveb CMS
See all- CVE-2026-6257Critical
Vvveb CMS before 1.0.8.2 contains a remote code execution vulnerability in its media management functionality where a missing return statement in the file rename handler allows authenticated attackers to rename files to blocked extensions .php or .htaccess. Attackers can first upload a text file and rename it to .htaccess to inject Apache directives that register PHP-executable MIME types, then upload another file and rename it to .php to execute arbitrary operating system commands as the www-data user.
- CVE-2026-46408High
Vvveb is a powerful and easy to use content management system (CMS) that had a vulnerability in the checkout endpoint prior to version 1.0.8.3. It allowed logged-in attackers to reuse another user's cart data in their own checkout session.
- CVE-2026-46407High
Vvveb is a powerful and easy to use content management system (CMS) that prior to version 1.0.8.3 allowed an authenticated administrator to load another administrator's API token list by supplying that user's admin_id. This can disclose sensitive API tokens belonging to other administrators.
- CVE-2026-45800High
In Vvveb CMS prior to version 1.0.8.3, there is an SQL injection issue in the user order history page. An authenticated user can exploit URL parameters to manipulate SQL queries.
- CVE-2026-45622Medium
Vvveb CMS before 1.0.8.3 contains an unauthenticated reflected XSS issue in the public product return form. The customer_order_id POST parameter is inserted into the "Order %s not found!" error message without HTML escaping, allowing attacker-controlled JavaScript to execute in the submitting user's browser.
- CVE-2026-44366Medium
Vvveb CMS before 1.0.8.1 contains a stored XSS vulnerability in the comment submission flow. The author field is submitted by an unauthenticated user on any public post page, stored without sanitization, and later rendered unsanitized in two distinct sinks.
- CVE-2026-6249High
Vvveb CMS version 1.0.8.2 contains a remote code execution vulnerability in its media upload handler that allows authenticated attackers to execute arbitrary operating system commands by uploading a PHP webshell with a .phtml extension.
Original NVD description (English source)
Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to 1.0.8.2, Vvveb CMS does not validate the sign of the quantity parameter on the cart-add endpoint. Submitting a negative integer is accepted by the server and treated as a normal positive line-item, but with the sign carried through into every downstream computation: line total, sub-total, taxes, and grand total all become negative numbers. The customer-facing cart UI then displays a negative grand total to the user, the checkout flow accepts the negative cart, and the resulting order is persisted in the merchant's database with a negative total column. From the merchant's order management dashboard, this surfaces as a real order with a negative total — an "the merchant owes the customer money" record that no legitimate workflow ever creates. This vulnerability is fixed in 1.0.8.2.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS