venal

Short definition from Wiktionary

Adjective

1. 1
   Venous; pertaining to veins.
2. 2
   For sale; available for purchase.
3. 3
   Of a position, privilege etc.: available for purchase rather than assigned on merit.
4. 4
   Capable of being bought (of a person); willing to take bribes.
5. 5
   Corrupt, mercenary.