This issue has been patched in v1.2.3 through the inclusion of full support for SVG uploads and automatic sanitization of uploaded SVG files. These two factors significantly limit the potential harm of this vulnerability.
This is because all SVGs in Winter CMS are rendered through an `img` tag, which prevents any payloads from being executed directly. Additionally, to execute the XSS, the attacker would need to convince the victim to directly visit the URL of the maliciously uploaded SVG, and the application would have to be using local storage where uploaded files are served under the same domain as the application itself instead of a CDN. This means they would already have extensive access and control within the system. To exploit the vulnerability, an attacker would already need to have developer or super user level permissions in Winter CMS. Prior to version 1.2.3, SVG uploads were not sanitized, which could have allowed a stored cross-site scripting (XSS) attack. Users with the `backend.manage_branding` permission can upload SVGs as the application logo. Downloadĭraw.io Portable is available for immediate download from the Draw.io Portable homepage.Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. And it's in Format, so it automatically works with the Platform including the Menu and Backup Utility. It supports upgrades by installing right over an existing copy, preserving all settings. Installer / Formatĭraw.io Portable is packaged in a Installer so it will automatically detect an existing installation when your drive is plugged in. It has built in templates for Class Diagrams, Flowcharts, Org Charts, Swimlane Diagrams, Sequence Diagrams, Kanban Boards, and more. Featuresĭrawio-desktop is a diagramming and whiteboarding desktop app based on Electron that wraps the core draw.io editor. Support for this package is not provided by the Draw.io team. Update automatically or install from the portable app store in the Platform.ĭraw.io is a trademark of JGraph Ltd and used with permission. And it's open source and completely free.
It's packaged in Format so it can easily integrate with the Platform. Draw.io is a full featured diagramming tool. A new version of Draw.io Portable has been released.
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