The HelloAsso plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'ha_ajax' function in all versions up to, and including, 1.1.10. This makes it possible for authenticated attackers, with Contributor-level access and above, to update plugin options, potentially disrupting the service.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in HelloAsso HelloAsso helloasso.This issue affects HelloAsso: from n/a through <= 1.1.9.