CVE-2026-108690: mall4j through 4.0 Operator Precedence Error Exposes Other Users' Cart Items via /p/shopCart/expiryProdList
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.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
Any authenticated storefront customer account can exploit it. No elevated administrative or shop-management privileges are required.
What access and request are required to retrieve another shopper's data?
An attacker needs a valid storefront session and can send a GET request to /p/shopCart/expiryProdList. The attack requires no user interaction.
What information may be exposed?
The endpoint can disclose other shoppers' off-shelf product basket entries, including product, SKU, quantity, shop, and promoter card numbers.
Are installations affected by default?
The provided data identifies mall4j through version 4.0 as affected, but does not state whether any configuration change is needed for the vulnerable endpoint to be available.
How can defenders determine whether exploitation may have occurred?
Review authenticated storefront request logs for GET requests to /p/shopCart/expiryProdList, particularly requests by accounts accessing cart data not associated with them. The provided data does not identify a more specific detection indicator.