Yep, it's been on for ages (since the beginning).
You can either remove walls from files and place a sleeping bag through the wall, then through the next one etc...
When you get to the loot room, throw your stuff next to the invisible wall, place a bag, suicide, loot your stuff, and so on till you leave the base.
Either that or go on the ceiling, remove ceiling from your files, and while you connect, during the first few seconds, your character will fall through that ceiling. Then, loot and leave with sleeping bags through walls/doors/whatever.
Using this, ANY base is raidable with 5/10 sleeping bags. Stopped playing some weeks ago when I found out, hopefully it'll be fixed and some new content will be added.
Btw, if they are willing to fix this, there is another bug that allow looting through walls when a box/furnace is next to a wood wall (not necessary close). Sometimes, on one side of the woodwall, there is a little gap (between the actual wall and the pillar). If you can see a box/furnace in this gap, you can loot it by slowly moving your mouse (At some point, you can see the "search" text without the round thing, like it's a small stash, when you press enter, you can loot it).
I stopped playing cause of this too, its pointless to gather stuff now.