Acunetix 360 detected a possible Server-Side Request Forgery by measuring durations of different requests but was unable to confirm the vulnerability.
Server-Side Request Forgery allows an attacker to make local and/or remote network requests while masquerading as the target server.
- Where possible, do not use users' input for URLs.
- If you definitely need dynamic URLs, use whitelisting. Make a list of valid, accepted URLs and do not accept other URLs.
- Ensure that you only accept URLs those are located on the trusted domains.