Damn Small XSS Scanner (DSXS) is a fully functional Cross-site scripting vulnerability scanner (supporting GET and POST parameters) written in under 100 lines of code.
quay.io/trickest/dsxs:3e628b6
-u
Target URL (e.g. http://www.target.com/page.htm?id=1)--proxy
HTTP proxy address (e.g. http://127.0.0.1:8080)--cookie
HTTP Cookie header value--referer
HTTP Referer header value--data
POST data (e.g. query=test)--user-agent
HTTP User-Agent header value