SQL Injection in Sciyon Koyuan Thermoelectricity Heat Network Management System
CVE-2026-2621

6.9MEDIUM

Key Information:

Vendor

Sciyon

Status
Koyuan Thermoelectricity Heat Network Management System
Vendor
CVE Published:
17 February 2026

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2026-2621?

A security vulnerability exists in the Sciyon Koyuan Thermoelectricity Heat Network Management System 3.0, specifically affecting the /SISReport/WebReport20/Proxy/AsyncTreeProxy.aspx file. An attacker can exploit this vulnerability through the manipulation of the PGUID parameter, leading to potential SQL injection attacks. This can be initiated remotely, putting systems at risk of unauthorized access and data breaches. Despite early notification regarding this vulnerability, the vendor has not responded.

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Affected Version(s)

Koyuan Thermoelectricity Heat Network Management System 3.0

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-2026-2621 - Proof of Concept

References

https://vuldb.com/?id.346272
vdb-entrytechnical-description
https://vuldb.com/?ctiid.346272
signaturepermissions-required
https://vuldb.com/?submit.751809
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

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

red88-debug (VulDB User)
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