Gallery PostNuke Integration Access Validation Vulnerability Solution:
Debian Linux has released security advisory DSA 879-1 with fixes addressing this issue. Please see the referenced advisory for further details on obtaining and applying the appropriate updates.
The vendor has addressed this issue in Gallery 1.5.1-RC2:
Gallery Gallery 1.4
Gallery Gallery 1.4 -pl2
Gallery Gallery 1.4 -pl1
Gallery Gallery 1.4.1
Gallery Gallery 1.4.2
Gallery Gallery 1.4.3 -pl1
Gallery Gallery 1.4.3 -pl2
Gallery Gallery 1.4.4 -pl3
Gallery Gallery 1.4.4 -pl2
Gallery Gallery 1.4.4 -pl5
Gallery Gallery 1.4.4 -pl4
Gallery Gallery 1.5