CVE-2026-109558 EdgeEver - Stored XSS

EdgeEver 1.6.0 through 1.112.0 contains a stored XSS caused by rendering template contentMarkdown with raw HTML via dangerouslySetInnerHTML without sanitization in TemplatesPane.tsx, letting attackers run scripts and access privileged bridge, exploit requires API or MCP token access.

CVSS base score 8.7 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.33% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Stored XSS
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Published
12 October 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Update to the latest version with proper HTML sanitization in TemplatesPane.tsx.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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