Are they just an issue with wefwef or trying to use an exploit
14 points
13 points
To prevent execution of scripts not referenced with the correct nonce:
script-src 'self' 'nonce-$RANDOM'
To make it super strict, this set could be used:
default-src 'self';
script-src 'nonce-$RANDOM'
object-src 'none';
base-uri 'none';
form-action 'none';
frame-ancestors 'none';
frame-src 'none';
require-trusted-types-for 'script'
Especially the last one might cause the most work, because the βmodern web development environmentβ simply cannot provide this. Also: form-action 'none'; should be validated. It should be set to self if forms are actually used to send data to the server and not handled by Javascript.
The MDN has a good overview: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy
