An OS command injection vulnerability exists in web2py 2.24.1 and earlier. When the product is configured to use notifySendHandler for logging (not the default configuration), a crafted web request may execute an arbitrary OS command on the web server using the product.
https://jvn.jp/en/jp/JVN80476432/
https://github.com/web2py/web2py/commit/936e2260b0c34c44e2f3674a893e96d2a7fad0a3