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The white dwarf binary pathways survey is dedicated to studying the originand evolution of binaries containing a white dwarf and an intermediate-masssecondary star of the spectral type A, F, G, or K (WD+AFGK). Here we presentCPD-65\,264, a new post common envelope binary with an orbital period of1.37\,days that contains a massive white dwarf ($ 0.86\pm0.06\,\mathrm{M}_{\odot}$) and an intermediate-mass($1.00\pm0.05\,\mathrm{M}_{\odot}$) main-sequence secondary star. Wecharacterized the secondary star and measured the orbital period usinghigh-resolution optical spectroscopy. The white dwarf parameters are determinedfrom HST spectroscopy. In addition, TESS observations revealed that up to 19per cent of the surface of the secondary is covered with starspots. Smallperiod changes found in the light curve indicate that the secondary is thesecond example of a G-type secondary star in a post-common envelope binary withlatitudinal differential rotation. Given the relatively large mass of the whitedwarf and the short orbital period, future mass transfer will be dynamicallyand thermally stable and the system will evolve into a cataclysmic variable.The formation of the system can be understood assuming common envelopeevolution without contributions from energy sources besides orbital energy.CPD-65\,264 is the seventh post-common envelope binaries with intermediate-masssecondaries that can be understood assuming a small efficiency in the commonenvelope energy equation, in agreement with findings for post-common envelopebinaries with M-dwarf or sub-stellar companions.

The White Dwarf Binary Pathways Survey -- VIII: a post common envelope binary with a massive white dwarf and an active G-type secondary star