CVE-2026-46408 Vvveb: checkout IDOR allows unauthorized reuse of another user's cart
A logged-in attacker can reuse another user's cart data in their own checkout session due to missing ownership verification on the checkout endpoint.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-46408?
CVE-2026-46408 is a high-severity missing authorization vulnerability in givanz Vvveb, published on 15 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-639
Which versions are affected by CVE-2026-46408?
How do I fix CVE-2026-46408?
No fix has been published for CVE-2026-46408 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-46408 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46408 exists.
Sources
Also known as GHSA-rmh2-wv73-xpqh.