Ulf Härnhammar discovered that due to missing input sanitising in
diatheke, a CGI script for making and browsing a bible website, it is
possible to execute arbitrary commands via a specially crafted URL.
For the stable distribution (woody) this problem has been fixed in
version 1.5.3-3woody2.
For the unstable distribution (sid) this problem will be fixed soon.
We recommend that you upgrade your diatheke package.