CVE-2026-108690 mall4j through 4.0 Operator Precedence Error Exposes Other Users' Cart Items via /p/shopCart/expiryProdList

Medium 5.3 Published Updated

Authenticated users can view other shoppers' cart items due to an SQL filter logic error in the mall4j e-commerce platform.

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-2026-108690?

CVE-2026-108690 is a medium-severity vulnerability in gz-yami mall4j, published on 11 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

mall4j through 4.0 contains an information disclosure vulnerability that allows authenticated customers to read other shoppers' cart items due to an operator precedence error in the getShopCartExpiryItems SQL filter. Attackers with any storefront account can request GET /p/shopCart/expiryProdList to retrieve off-shelf product basket entries including product, SKU, quantity, shop, and promoter card numbers.

Weakness: CWE-783

Which versions are affected by CVE-2026-108690?

How do I fix CVE-2026-108690?

No fix has been published for CVE-2026-108690 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-108690 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108690 exists.

Sources

Also known as GHSA-m4x2-mf8c-9rmw.

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