CVE-2026-71189Network attack vector

Victim-session script execution via crafted request

Published Sep 29, 2026 · Updated Sep 29, 2026

Cross-site scripting in Toptech Systems TMS7 and Tophat 7.6.3 allows remote attackers to run JavaScript in a user's session via a crafted request. The specific request handler and its treatment of attacker-controlled input have not been published. Execution requires another application user to issue the crafted request; the reported effect is script execution in that user's browser session, not server-side code execution.

CVSS severityUnavailable
Unscored
EPSS probability0.19%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Toptech Systems TMS7 and Tophat 7.6.3 allows remote attackers to run JavaScript in a user's session via a crafted request. The specific request handler and its treatment of attacker-controlled input have not been published. Execution requires another application user to issue the crafted request; the reported effect is script execution in that user's browser session, not server-side code execution.

The record

CVE
CVE-2026-71189
Published
Sep 29, 2026
Updated
Sep 29, 2026
Vendor
Toptech Systems
Product
TMS7
Classifications
T1204
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.6.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Toptech Systems · TMS7version=7.6.3
Toptech Systems · Tophatversion=7.6.3

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1204User Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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