CVE-2026-71189 PUBLISHED

Toptech TMS7 and TopHAT Cross-site Scripting

Assigner: icscert
Reserved: 10.08.2026 Published: 29.09.2026 Updated: 30.09.2026

An attacker can construct a request that, if issued by another application user, will cause JavaScript code supplied by the attacker to execute within the user's browser in the context of that user's session with the application.

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
CVSS Score: 3.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	None
User Interaction	Required	Availability Impact	None

CVSS 3.1

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 4.8

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	Active

CVSS 4.0

Product Status

Vendor	Toptech Systems
Product	TMS7
Versions	Default: unaffected Version 7.6.3 is affected Version 7.8 is unaffected

Vendor	Toptech Systems
Product	TopHAT
Versions	Default: unaffected Version 7.6.3 is affected Version 7.8 is unaffected

Solutions

Toptech Systems sent a security advisory to their customers on July 20, 2026. The issue has been addressed in release 7.8. Users can get the latest release and more information on this issue at the Toptech Systems security blog. https://www.toptech.com/blog/tms7-version-7-8-strengthens-security

Credits

Sachin Shetty and Roy Duisters of Shell CyberDefence reported this vulnerability to Toptech and CISA. finder

References

Problem Types

CWE-79 CWE