GHSA-R2WF-Q3X4-HRV9 Default development error handler in Ratpack is vulnerable to HTML content injection (XSS)

Versions of Ratpack from 0.9.10 through 1.7.5 are vulnerable to CWE-79: Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' aka. XSS in the development error handler. An attacker can utilize this to perform XSS when an exception message contains untrusted data. As a...