Cross site scripting

simple-markdown.js in Khan Academy simple-markdown before 0.4.4 allows XSS via a data: or vbscript: URI...

CVE-2019-9844

CVE-2019-9844 affects the Node package simple-markdown (Khan Academy’s simple-markdown) up to version 0.4.3. The vulnerability is a Cross‑Site Scripting (XSS) flaw caused by insufficient input sanitization in links, enabling execution of malicious JavaScript via data: or VBScript: URIs. The issue...