The vulnerability of the sheet_to_html() function in the artificial intelligence-based web interface Open WebUI allows attackers to perform cross-site scripting attacks (XSS).

The vulnerability of the sheettohtml function in the Open WebUI artificial intelligence-based web interface exists due to the lack of measures taken to protect the structure of the web page. Exploiting this vulnerability allows a malicious actor to perform cross-site scripting attacks XSS remotel...

CVE-2026-44549: Improper Neutralization of Input During Web Page Generation

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheettohtml to embed an XSS payload into the generated...