Business Logic Error in Sanluan PublicCMS Trade Payment Flow
CVE-2026-8738

6.9MEDIUM

Key Information:

Vendor: Sanluan
Status: Publiccms
Vendor: CVE Published:; 17 May 2026

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👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8738?

A vulnerability has been identified in Sanluan PublicCMS version 5.202506.d that affects the Trade Payment Flow component. Specifically, the issue resides within the TradeOrderController and TradePaymentController classes, where improper handling of the pay function can lead to critical business logic errors. This flaw may be exploited remotely, given that the methods were publicly disclosed, allowing malicious actors to manipulate transaction processes. Despite the vendor being alerted about the vulnerability, there has been no official response regarding a fix or mitigation strategy.

Affected Version(s)

PublicCMS 5.202506.d

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-2026-8738 - Proof of Concept