Cross-site Scripting (XSS)

Overview ghost is a publishing platform Affected versions of this package are vulnerable to Cross-site Scripting XSS via the selectedRevision path in the post history modal and feature image caption rendering code. An attacker can execute script in another staff user’s Admin session by creating o...

CVE-2026-17496 NoteGen chat preview XSS via unsanitized AI/skill HTML rendering

NoteGen before 0.32.0 renders AI chat responses with markdown-it configured with html:true and injects the result into the DOM via dangerouslySetInnerHTML in chat-preview, without HTML sanitization and with CSP set to null. Attacker-controlled content that reaches the model prompt for example a...

Open WebUI has stored XSS via unsanitized Office/Excel/DOCX file preview rendering ({@html} without DOMPurify)

Related advisory This advisory tracks a regression of the original Excel-preview XSS that was publicly disclosed and patched under GHSA-jwf8-pv5p-vhmc patched in v0.8.0. The same root cause — XLSX.utils.sheettohtml output rendered via @html excelHtml without DOMPurify — was reintroduced sometime...