Advisories for Npm/Eta package

2023

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Eta is an embedded JS templating engine that works inside Node, Deno, and the browser. XSS attack - anyone using the Express API is impacted. The problem has been resolved. Users should upgrade to version 2.0.0. As a workaround, don't pass user supplied things directly to res.render.

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Versions of the package eta before 2.0.0 is vulnerable to Remote Code Execution (RCE) by overwriting template engine configuration variables with view options received from The Express render API. Note: This is exploitable only for users who are rendering templates with user-defined data.