ΔE 23.8, loose: different enough that you should pick on purpose. Wurm Green is noticeably lighter, more saturated, warmer than Warpstone Glow.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Wurm Green is noticeably lighter, more saturated, warmer than Warpstone Glow.
The same difference applies the other way round: Warpstone Glow is noticeably darker, more muted, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Warpstone Glow on the colour wheel See Wurm Green on the colour wheel
All matches: Warpstone Glow equivalents · Wurm Green equivalents