Collabora Online is a collaborative online office suite based on LibreOffice. A stored cross-site scripting vulnerability was found in Collabora Online. An attacker could create a document with an XSS payload in document text referenced by field which, if hovered over to produce a tooltip, could be executed by the user's browser. Users should upgrade to Collabora Online 23.05.10.1 or higher. Earlier series of Collabora Online, 22.04, 21.11, etc. are unaffected.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.