Kanboard is project management software that focuses on the Kanban methodology. In versions prior to 1.2.31authenticated user is able to perform a SQL Injection, leading to a privilege escalation or loss of confidentiality. It appears that in some insert and update operations, the code improperly uses the PicoDB library to update/insert new information. Version 1.2.31 contains a fix for this issue.
https://www.debian.org/security/2023/dsa-5454
https://github.com/kanboard/kanboard/security/advisories/GHSA-9gvq-78jp-jxcx
https://github.com/kanboard/kanboard/releases/tag/v1.2.31
https://github.com/kanboard/kanboard/commit/25b93343baeaf8ad018dcd87b094e47a5c6a3e0a