Jenkins Generic Webhook Trigger Plugin 1.84.1 and earlier uses a non-constant time comparison function when checking whether the provided and expected webhook token are equal, potentially allowing attackers to use statistical methods to obtain a valid webhook token.
Jenkins Generic Webhook Trigger Plugin 1.81 and earlier does not escape the build cause when using the webhook, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.
Jenkins Generic Webhook Trigger Plugin does not configure its XML parser to prevent XML external entity (XXE) attacks.