possible open redirect parameters–>
1. ?url=https://{target}
2. ?url=$2f%2f{target}
3. /cgi-bin/redirect.cgi?{target}
More tip:
?url={payload} –> not working?
Try this:
?url=goodtext&url=https://t.co/j2nBJYiV4t
A parameter pollution can bypass the WAF sometimes
#bugbountytip