XSS-Vulnerability in MUCkl v0.4.2 (and earlier)
Thanks to BeF we discovered (and fixed) a XSS vulnerability in MUCkl yesterday. Now there’s a new release of MUCkl (v0.4.3) available for you to download which fixes this issue (and some more bugs too).
If you’re hosting an instance of MUCkl somewhere please upgrade!