Police are investigating an incident of exposure, which happened at around 8.20pm on Wednesday 25th September on South Street, Cockermouth.
The victim was approached by a man who exposed himself in front of her.
A Cumbria Police spokesman said: “The man is described as being around 55-65 years old, with dark grey/black hair, of medium build, around 5’11 tall and wearing a knee-length black jacket.
“The man left in the direction of South Street Bridge.”
Police are asking for anyone who may have witnessed this incident to call PC 2790 on 101, or call Crimestoppers anonymously on 0800 555 111, quoting log number 205 of the 25th September.