{"id":"CVE-2026-108264","published":"2026-10-09T21:17:04.703","lastModified":"2026-10-13T16:17:12.340","description":"Wizarr is an advanced user invitation and management system for Jellyfin, Plex, Emby, and other media servers. Prior to 2026.9.1, wizard step Markdown supplied through the editor or imported bundles was evaluated by app/blueprints/wizard/routes.py in the application's non-sandboxed Jinja2 environment with application globals exposed. An authenticated user able to create steps, or an administrator importing an untrusted bundle through POST /settings/wizard/import, could execute arbitrary Python when GET /wizard/{server}/{idx} rendered the stored step; app/jinja_filters.py and app/services/wizard_widgets.py contained additional evaluation sinks. This could execute operating-system commands as the application user, disclose the Flask SECRET_KEY, access connected service credentials and the database, and produce stored cross-site scripting. This issue is fixed in 2026.9.1.","cvssScore":9.1,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","cwes":["CWE-1336"],"vendors":[],"products":[],"references":[{"url":"https://github.com/wizarrrr/wizarr/commit/6aa3c33c1b3d945e055ef116cc531028b3735bb7","tags":[]},{"url":"https://github.com/wizarrrr/wizarr/releases/tag/v2026.9.1","tags":[]},{"url":"https://github.com/wizarrrr/wizarr/security/advisories/GHSA-h9rv-mxh2-35f3","tags":[]},{"url":"https://github.com/wizarrrr/wizarr/security/advisories/GHSA-h9rv-mxh2-35f3","tags":[]}],"exploitRefs":[{"url":"https://github.com/wizarrrr/wizarr/commit/6aa3c33c1b3d945e055ef116cc531028b3735bb7","tags":[]},{"url":"https://github.com/wizarrrr/wizarr/releases/tag/v2026.9.1","tags":[]},{"url":"https://github.com/wizarrrr/wizarr/security/advisories/GHSA-h9rv-mxh2-35f3","tags":[]},{"url":"https://github.com/wizarrrr/wizarr/security/advisories/GHSA-h9rv-mxh2-35f3","tags":[]}],"hasPoc":true,"ai":{"summary":"Wizarr allows authenticated users to execute arbitrary Python code through insecure Jinja2 template evaluation, potentially leading to OS command execution, credential disclosure, and XSS attacks.","exploitability":"Moderately easy to exploit with preconditions that an authenticated user can create wizard steps or an admin can import untrusted bundles, requiring no additional user interaction once the malicious step is rendered.","blast_radius":"High impact across multiple systems as the vulnerability can lead to full system compromise, credential theft, and cross-site scripting affecting all users of the media server platform.","remediation":"Upgrade to 2026.9.1 immediately to remediate this critical vulnerability.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","jinja2","template-injection","web"],"model":"garnet-coder","analyzedAt":"2026-10-13T08:49:02.129Z"}}