Cross-site Scripting (XSS)

TinyMCE is vulnerable to Cross-site Scripting XSS. The vulnerability occurs when an HTML snippet is restored from the undo stack. In this situation, a combination of string manipulation and reparative parsing by the browser's native DomParser API results in malicious mutations to the HTML. This, ...

CVE-2023-45818 Cross-site Scripting vulnerability in TinyMCE undo/redo, getContent API, resetContent API, and Autosave plugin

TinyMCE is an open source rich text editor. A mutation cross-site scripting mXSS vulnerability was discovered in TinyMCE’s core undo and redo functionality. When a carefully-crafted HTML snippet passes the XSS sanitisation layer, it is manipulated as a string by internal trimming functions before...