CVE-2021-37212

The bulletin function of Flygo contains Insecure Direct Object Reference (IDOR) vulnerability. After being authenticated as a general user, remote attackers can manipulate the bulletin ID in specific Url parameters and access and modify bulletin particular content.

CVE-2021-37211

The bulletin function of Flygo does not filter special characters while a new announcement is added. Remoter attackers can use the vulnerability with general user’s credential to inject JavaScript and execute stored XSS attacks.