$ cat writeup.md…
$ cat writeup.md…
hackadvisor
Task: PHP/Twig learning platform with admin Signature Template editor vulnerable to SSTI. Solution: Injected {{ [\"cat /root/flag.txt\"]|map(\"system\") }} via Twig map filter callback to achieve RCE as root.
Permission denied (requires tier.pro)
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$sign in$ grep --similar