All perfect praise be to Allah, The Lord of The Worlds, and may His peace and blessings be upon our Prophet Muhammad and upon all of his family and companions.
The odor discharged from a woman's front passage invalidates ablution since It was narrated that Abu Hurairah said: "The Messenger of Allah said: "No ablution (is needed) unless there is an odor or a sound." [At-Tirmithi] graded as sound. In addition, the word odor includes any odor discharged from the front or back passages according to the jurists of Shafiee' and Hanbali's schools of thought.
Ibn Hajar (May Allah have mercy on his soul) said while mentioning ablution nullifiers: "One of those nullifiers, is anything discharged from the front or back passages." [Tohfat Al-Muhtaj vol.1/pp.130]. And Allah Knows Best.