Mirage Track
Level 30 → Level 31
Polyglot Upload
1050 pts+125 first-blood bonus
Objective
Dropframe. Three validators guard the upload. Build the file that is a valid image AND code (polyglot → RCE).
How to play
Open the target in your browser, find the flaw, and exploit it. On success the page reveals the login for the next level — that password is this level's flag. Submit it on the track page (or /submit) to bank the points.
Target
Log in asl30 with the password you captured on the previous level, then:https://mirage-l30.breachlab.org🩸
ACTIVE RECORDFirst Blood captured by