Based on our hints in the first flag, it gives us the endpoint

+-----------------------------------------------------------------------+
|  PRJBLK{1/6:_fIR$t_0f_m@nY_fL@gz._wHEr3_W1lL_Y0u_pUT_Th3M_@1l?}       |
|                                                                       |
|  Hint: /api/listing.php?key=VGhpc0lzVGhlVmVyeVZlcnlWZXJ5U2VjcmV0S2V5  |
+-----------------------------------------------------------------------+

After browsing to the endpoint, there were a list of endpoints within the /app directory.

Within this listing, we also found our 2nd flag 🏁

image.png

<aside> 💡

Flag 2/6

PRJBLK{2/6:_oH_b0y,_Wh@t_d0_W3_H@vE_hEr3}

</aside>

Next

Flag 3/6