Vulnerability · Published May 15, 2026 · Assigned by GitHub_M

CVE-2026-46408Vvveb: checkout IDOR allows unauthorized reuse of another user's cart

High 7.6

In plain English

A high-severity authorization bypass via user-controlled key in Vvveb from givanz. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).

Severity (CVSS 3.1)7.6High

Exploit odds (30 days)0.2%top 84.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to 1.0.8.3, the checkout endpoint accepts a user-controlled cart_id and uses it to enter the payment flow without verifying cart ownership. A logged-in attacker can therefore reuse another user's cart data in their own checkout session. This vulnerability is fixed in 1.0.8.3.

Affected products (as reported)

Vendor	Product	Versions
givanz	Vvveb	< 1.0.8.3

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

References

https://github.com/givanz/Vvveb/security/advisories/GHSA-rmh2-wv73-xpqh x_refsource_CONFIRM