Information Disclosure Vulnerability in mall4j by Yami
CVE-2026-108690

5.3MEDIUM

Key Information:

Vendor

Gz-yami

Status
Mall4j
Vendor
CVE Published:
11 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-108690?

The mall4j version 4.0 contains an information disclosure vulnerability that permits authenticated users to access details from other customers' shopping carts. This flaw arises from an operator precedence issue within the getShopCartExpiryItems SQL filter, allowing attackers with a storefront account to execute GET requests to /p/shopCart/expiryProdList. Consequently, sensitive basket data, including product information, SKUs, quantities, shop details, and promoter card numbers, can be exposed, significantly undermining user privacy and security.

Affected Version(s)

mall4j 0 <= 4.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-108690 - Proof of Concept

References

https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1...
exploit
https://github.com/gz-yami/mall4j/blob/ffc672fc1aa4320ce0...
technical-description
https://github.com/gz-yami/mall4j/blob/ffc672fc1aa4320ce0...
technical-description

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yaqi Chao
.