Stored Cross-Site Scripting in EdgeEver Application by Tianma Technology
CVE-2026-109558

8.5HIGH

Key Information:

Vendor

Tianma-if

Status
Edgeever
Vendor
CVE Published:
12 October 2026

What is CVE-2026-109558?

The EdgeEver application, specifically versions 1.6.0 to 1.112.0, is susceptible to a stored cross-site scripting vulnerability in the TemplatesPane.tsx file. This flaw occurs due to the use of dangerouslySetInnerHTML to render template content, which allows attackers to insert HTML event handlers via an API or MCP token. This exploitation can result in unauthorized script execution during the preview, potentially compromising the security of the privileged window.edgeeverDesktop bridge.

Affected Version(s)

EdgeEver 1.6.0 <= 1.112.0

References

https://github.com/tianma-if/edgeever/issues/533
issue-tracking
https://github.com/tianma-if/edgeever/issues/546
issue-tracking
https://github.com/tianma-if/edgeever/commit/6b5027e8b4be...
patch

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

wgetnz
.