gz-yami mall4j up to 4.0 cleanExpiryProdList improper authorization

Summaryinfo

A vulnerability, which was classified as problematic, has been found in gz-yami mall4j up to 4.0. This affects the function cleanExpiryProdList of the file /p/shopCart/cleanExpiryProdList. This manipulation causes improper authorization. This vulnerability appears as CVE-2026-108691. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in gz-yami mall4j up to 4.0. It has been declared as problematic. Affected by this vulnerability is the function cleanExpiryProdList of the file /p/shopCart/cleanExpiryProdList. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect integrity, and availability. The summary by CVE is:

mall4j through 4.0 contains an improper authorization vulnerability that allows authenticated storefront customers to delete other shoppers' cart items through an operator precedence error in the cleanExpiryProdList SQL statement. Attackers can send one DELETE request to /p/shopCart/cleanExpiryProdList to remove every user's cart entries for off-shelf products, which do not return when products are restocked.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-108691 since 10/11/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/11/2026). MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• gz-yami

Name

• mall4j

Version

• 4.0

CPE 2.3info

• 🔒

CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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