Adds escape html filters to the error messages coming from post validation.
This vulnerability affects the following application versions:
- WooCommerce 3.0.0
- WooCommerce 3.0.1
- WooCommerce 3.0.2
- WooCommerce 3.0.3
- WooCommerce 3.0.4
- WooCommerce 3.0.5
- WooCommerce 3.0.6
- WooCommerce 3.0.7
- WooCommerce 3.0.8
- WooCommerce 3.0.9
- WooCommerce 3.1.0
- WooCommerce 3.1.0-rc.1
- WooCommerce 3.1.0-rc.2
- WooCommerce 3.1.1
- WooCommerce 3.1.2