SQL Injection Vulnerability in Yonyou KSOA 9.0
CVE-2026-1120

6.9MEDIUM

Key Information:

Vendor

Yonyou

Status
Ksoa
Vendor
CVE Published:
18 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-1120?

A serious vulnerability has been identified in Yonyou KSOA 9.0 affecting the HTTP GET Parameter Handler. This flaw, which lies within an obscure function of the file /worksheet/del_work.jsp, enables an attacker to manipulate the ID argument, leading to SQL injection attacks. This type of attack can be executed remotely, posing significant risks to data integrity and security. The vulnerability has already been disclosed publicly, and despite early notification to the vendor, there has been no response to address the issue.

Affected Version(s)

KSOA 9.0

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-2026-1120 - Proof of Concept

References

https://vuldb.com/?id.341712
vdb-entrytechnical-description
https://vuldb.com/?ctiid.341712
signaturepermissions-required
https://vuldb.com/?submit.734535
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

LX-66-LX (VulDB User)
JSON
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