yaffa v2.0.0 is vulnerable to Cross Site Scripting (XSS). An attacker can inject malicious JavaScript into the "Add Account Group" function on the account-group page, allowing execution of arbitrary script in the context of users who view the affected page.
https://github.com/kantorge/yaffa
https://github.com/J4cky1028/vulnerability-research/tree/main/CVE-2025-70844