CVE-2026-44826— Vvveb: Vvveb CMS — Negative-quantity cart manipulation allows creation of orders with negative grand totals
Possible ATT&CK Techniques 2AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing ApplicationGet alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-44826
Vulnerability Information
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Vulnerability Title
Vvveb: Vvveb CMS — Negative-quantity cart manipulation allows creation of orders with negative grand totals
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1284
Source: NVD (National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-44826
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://github.com/givanz/Vvveb/security/advisories/GHSA-75x2-j47j-mg8jx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-44826
Same Patch Batch · givanz · 2026-05-15 · 7 CVEs total
| CVE-2026-46407 | 8.1 HIGH | Vvveb: admin/auth-token IDOR allows unauthorized disclosure of administrator REST API toke |
| CVE-2026-46408 | 7.6 HIGH | Vvveb: checkout IDOR allows unauthorized reuse of another user's cart |
| CVE-2026-44366 | 6.1 MEDIUM | Vvveb: Stored XSS via Comment Author Field |
| CVE-2026-45616 | Vvveb: Stored XSS in Posts allows privilege escalation via post editor | |
| CVE-2026-45800 | Vvveb: Authenticated SQL injection in /user/orders via order_by and direction | |
| CVE-2026-45622 | Vvveb: Unauthenticated reflected XSS in public product return form via customer_order_id |
IV. Related Vulnerabilities
Same product: Vvveb
- CVE-2026-46408
Vvveb: checkout IDOR allows unauthorized reuse of another us - CVE-2026-46407
Vvveb: admin/auth-token IDOR allows unauthorized disclosure - CVE-2026-45800
Vvveb: Authenticated SQL injection in /user/orders via order - CVE-2026-45622
Vvveb: Unauthenticated reflected XSS in public product retur - CVE-2026-45616
Vvveb: Stored XSS in Posts allows privilege escalation via p
Same vendor: givanz
- CVE-2026-46408
Vvveb: checkout IDOR allows unauthorized reuse of another us - CVE-2026-46407
Vvveb: admin/auth-token IDOR allows unauthorized disclosure - CVE-2026-45800
Vvveb: Authenticated SQL injection in /user/orders via order - CVE-2026-45622
Vvveb: Unauthenticated reflected XSS in public product retur - CVE-2026-45616
Vvveb: Stored XSS in Posts allows privilege escalation via p
Same weakness: CWE-1284
V. Comments for CVE-2026-44826
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