Authentication Bypass in Product Review Deletion for Mall4j by GZ-Yami
CVE-2026-102362

6.9MEDIUM

Key Information:

Vendor

Gz-yami

Status
Mall4j
Vendor
CVE Published:
28 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-102362?

Mall4j, a product by GZ-Yami, has a vulnerability that allows unauthenticated users to bypass authorization checks when attempting to delete product reviews through the DELETE /prodComm endpoint. Attackers can exploit this flaw by providing the necessary prodCommId, enabling them to remove arbitrary product reviews without verification. This poses a significant risk to the integrity of product feedback within the application.

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-2026-102362 - Proof of Concept

References

https://github.com/LinYuanyi1/cve-request-poc/blob/114b3f...
exploit
https://github.com/gz-yami/mall4j
product
https://github.com/gz-yami/mall4j/blob/ffc672fc1aa4320ce0...
technical-description

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
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

Mingsheng Lin
.