CVE-2026-108264 Wizarr - Remote Code Execution & Stored XSS

Wizarr prior to 2026.9.1 contains a remote code execution caused by unsafe evaluation of Markdown in a non-sandboxed Jinja2 environment, letting authenticated users or admins execute arbitrary Python and OS commands, exploit requires authenticated user or admin importing untrusted bundles.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.38% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution, Information Disclosure, Client Script Exec
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Published
9 October 2026
Updated
15 October 2026
Weakness
CWE-1336

Vendor fix

Update to version 2026.9.1 or later.

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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