CVE-2026-2621

HIGH 7.3

Sciyon Koyuan Thermoelectricity Heat Network Management System AsyncTreeProxy.aspx sql injection

CVSS Score

7.3

EPSS Score

0.0%

EPSS Percentile

0th

A security vulnerability has been detected in Sciyon Koyuan Thermoelectricity Heat Network Management System 3.0. This affects an unknown part of the file /SISReport/WebReport20/Proxy/AsyncTreeProxy.aspx. The manipulation of the argument PGUID leads to sql injection. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CWE	CWE-89 CWE-74
Vendor	sciyon
Product	koyuan thermoelectricity heat network management system
Published	Feb 17, 2026
Last Updated	Feb 23, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Sciyon / Koyuan Thermoelectricity Heat Network Management System

3.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.346272 vuldb.com: https://vuldb.com/?ctiid.346272 vuldb.com: https://vuldb.com/?submit.751809 github.com: https://github.com/red88-debug/CVEs/blob/main/Koyuan%20Thermoelectricity%20Heat%20Network%20Management%20System%20SQL%20Injection%20Vulnerability.md

Credits

🔍 red88-debug (VulDB User)