The link plugin in Plume 1.1.x has a security problem.
You can download a patched version here:
http://prdownloads.sourceforge.net/pxsystem/plume-1.1.4.zip?download
The plugin is not part of the official distribution of the 1.0.x
version. You should get the latest plugin by the author or patch it as
given in the previous link.
Best regards,
loïc
Note: Security focus is reporting an exploit here for the 1.0.4
release. http://www.securityfocus.com/bid/18780/info we where not able
to reproduce the error. If you are able to provide more details, we
would be happy to fix as soon as possible the problem.