Open WebUI: Stored XSS in Mermaid Markdown Preview

Summary Open WebUI renders Mermaid blocks from Markdown files in the file preview panel and inserts the generated SVG into the DOM using innerHTML. Because Mermaid is configured with securityLevel: 'loose', attacker-controlled Mermaid content can be rendered unsafely in this flow. A working paylo...

CVE-2026-27627

Summary: CVE-2026-27627 affects Karakeep’s Reddit metascraper path. In version 0.30.0, the HTML returned as readableContentHtml by the Reddit plugin is consumed directly by the HTML parsing subprocess without DOMPurify sanitization, while other content sources go through Readability + DOMPurify. ...