Static Nonce Identified in Content Security Policy (CSP)
Invicti identified that the nonce
used remained same for subsequent responses.
An attacker can carry out a successful Cross-site Scripting attack by using this nonce
.
The application must generate a fresh value for the nonce-value
directive at random and independently each time it transmits a policy. The value should be at least 128 bits long and should be generated using a cryptographically secure random number generator.